Ko Samui Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Ko Samui Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	26.262500000000003	26.3		27.66875	27
	26.131249999999998	26.7		27.64375	27.7
	26.031250000000004	26.7		27.6	27.1
	25.981249999999996	26.6		27.575000000000003	27.1
	26.006249999999998	26.2		27.650000000000002	27.1
	26.10625	26.5		27.7625	27.6
	26.143750000000008	27		27.599999999999998	27.5
	26.368750000000002	26.5		27.675	27.5
	26.4	25.9		27.743749999999995	26.8
	26.418749999999996	25.1		27.668749999999996	26.1
	26.2875	25.3		27.574999999999996	26.1
	26.05	25.2		27.525	26
	25.975000000000005	25.3		27.3875	26.1
	26.00625	25.6		27.418749999999996	26.4
Jan.	25.975	25.7		27.56875	26.9
	25.89375	26.3		27.549999999999997	27
	25.856249999999996	25.7		27.612499999999997	26.9
	26.2	25.9		27.6375	26.5
	26.199999999999996	25.5		27.750000000000004	26.7
	26.256250000000005	25.7		27.54375	27
	25.99375	25.7		27.6125	27.1
	26.018749999999997	26.1		27.5625	26.6
	26.11875	26.2		27.5125	26.5
	26.28125	25.9		27.593750000000004	26.8
	26.124999999999996	26.3		27.424999999999997	26.8
	26.099999999999998	26.5		27.4125	27.2
	26.112499999999997	26.4		27.55625	26.9
	26.081249999999997	25.9		27.50625	26.6
	26.181250000000006	26.3		27.49375	26.9
	26.093750000000004	26.1		27.606249999999996	27.1
	26.156249999999993	26.5		27.475	26.9
	26.10625	26.2		27.51875	26.7
	25.993750000000002	26.3		27.587500000000006	26.9
	26.125	26.4		27.606250000000003	26.8
	26.287499999999998	26.4		27.599999999999998	27
	26.33125	26.2		27.65	27
	26.431250000000002	25.9		27.63125	27.3
	25.924999999999997	26.1		27.743750000000002	27.1
	26.125	26.7		27.543750000000003	27.4
	26.218749999999996	27		27.65625	27.4
	26.243750000000002	26.7		27.706249999999997	27.5
	26.374999999999993	26.1		27.706250000000008	27.2
	26.52499999999999	26.5		27.768749999999997	27.1
	26.643749999999997	26.9		27.831250000000008	27.5
	26.624999999999996	27.1		27.93125	27.3
Feb.	26.6875	27.1		27.849999999999998	27.6
	26.56875	27		27.825	27.9
	26.568749999999998	26.9		27.83125	27.6
	26.787499999999998	27.2		27.925	27.5
	26.35625	27.1		27.737499999999997	27.6
	26.406249999999996	27.2		27.862499999999997	27.6
	26.356250000000003	26.7		27.85	27.4
	26.500000000000004	25.9		27.918749999999996	27.1
	26.581249999999997	26.2		27.912499999999998	27.5
	26.499999999999996	26.8		27.968749999999996	27.7
	26.44375	26.8		28.0125	27.8
	26.5625	27		27.999999999999996	27.8
	26.55625	26.6		28.125000000000004	28.3
	26.843749999999996	27		28.156250000000007	28.3
	26.787500000000005	27.1		28.075000000000003	28.8
	26.8	27.6		28.037500000000005	28.7
	26.737499999999997	27.8		28.093750000000007	28.9
	26.843750000000004	27.5		28.2375	28.6
	26.78125	27.5		28.35	28.7
	26.799999999999997	27.5		28.412499999999994	28.8
	27.137500000000003	27.9		28.325000000000003	28.5
	26.875000000000004	27.7		28.287499999999998	28.1
	26.981249999999996	27.3		28.412500000000005	28.1
	26.881250000000005	27.1		28.462499999999995	27.7
	26.687499999999996	26.9		28.474999999999998	27.5
	26.912500000000005	27.4		28.5375	27.9
	26.962499999999995	27.1		28.556250000000002	27.8
	27.056250000000006	26.9		28.59375	27.9
Mar.	27.418749999999996	26.6		28.656250000000004	27.3
	27.49375	27.1		28.675	27.6
	27.500000000000004	27.1		28.618749999999995	27.8
	27.41875	26.9		28.675	27.8
	27.056250000000002	27.5		28.762500000000003	28.3
	27.162499999999994	26.8		28.7	28
	27.325000000000003	26.7		28.862499999999997	27.9
	27.256249999999994	27.2		29.031250000000004	28.1
	27.3625	27.1		28.93125	27.8
	27.287499999999998	27.3		29.012499999999996	28.4
	27.30625	27.3		29.087499999999995	28
	27.50625	26.9		29.131249999999998	28
	27.506249999999998	26.8		29.125000000000004	28
	27.4875	27.1		29.10625	28.3
	27.51875	27.4		29.012499999999996	28.3
	27.531250000000007	27		29.15	28.2
	27.5375	27.3		29.21875	28.7
	27.418750000000006	27.2		29.249999999999996	28.6
	27.081250000000004	27.7		29.274999999999995	28.9
	27.293749999999996	27.7		29.181250000000002	28.4
	27.71875	27.1		29.156250000000004	28.3
	27.56875	27.4		29.162499999999998	29.2
	27.506249999999998	28.2		29.35625	29.1
	27.49375	28.3		29.399999999999995	29.8
	27.562499999999996	28.3		29.162500000000005	29.5
	27.787499999999998	28.1		29.325	29
	27.718750000000004	28.1		29.54375	28.9
	27.806250000000002	28.4		29.493750000000002	29.3
	27.868750000000002	28.4		29.65625	29.4
	27.95	28.6		29.656249999999996	29.6
	27.78125	28.7		29.631249999999994	29.5
Apr.	27.4875	28.1		29.706250000000004	29.8
	27.781249999999993	28.5		29.412500000000005	29.8
	27.95	28.6		29.437499999999996	29.4
	27.806250000000002	28.5		29.725	29.6
	27.912499999999998	28.5		29.906249999999996	29.6
	28.206249999999997	28.5		30.0125	29.4
	28.237500000000004	28		30.11875	29.5
	28.3625	28.3		29.96875	29.6
	28.212500000000006	28.2		30.0625	29.2
	28.237499999999997	28.7		30.01875	29.2
	28.21875	28.4		29.999999999999996	29
	28.118750000000002	28.4		30.1125	29.6
	28.068749999999994	28.4		29.99375	29.9
	28.081249999999997	28.5		30.000000000000004	30
	28.14375	28.5		29.8625	29.7
	28.15	29		29.775	29.7
	28.39375	29		30.137499999999996	30
	28.156250000000004	28.6		30.2625	29.9
	28.15	28.8		30.0875	30
	28.218750000000004	28.3		30.14375	29.7
	28.2	28.9		30.268749999999997	29.7
	27.912500000000005	28.6		30.2125	29.9
	28.08125	29.2		30.306250000000006	30
	28.312500000000004	28.8		30.306250000000006	30
	28.25625	28.8		30.181249999999995	29.8
	28.356250000000003	29.1		30.168750000000003	29.9
	28.131249999999994	27.5		30.28125	29.6
	28.193750000000005	27.8		30.437499999999996	29.6
	28.487499999999997	28		30.449999999999996	30
	28.2625	28.8		30.375	29.9
May	28.225	28.9		30.368750000000002	30.9
	28.231250000000003	28.3		30.425	29.6
	27.925	27.4		30.25625	29.6
	27.94375	27.3		30.193749999999998	30
	28.225	28.5		30.431250000000002	29.3
	28.287499999999998	28.4		30.637499999999996	29.7
	28.556250000000002	28.4		30.41875	29.5
	28.08125	28.5		30.20625	29.4
	28.3875	28.3		30.20625	29.9
	28.24375	28.6		30.281250000000004	29.8
	28.162500000000005	28.4		30.231250000000003	29.9
	28.250000000000004	28.3		30.1625	30.6
	28.275	28.2		30.125	30.2
	27.943749999999998	28.8		30.112500000000008	29.9
	27.856250000000006	28.6		30.062499999999996	29.3
	27.993750000000002	28.5		30.0625	29.5
	27.95	27.7		29.96875	29.1
	27.79375	27.8		30.143750000000004	29.1
	27.943749999999998	27.3		30.1625	29
	28.15	27.3		29.937499999999996	28.9
	28.162499999999998	27.5		30.18125	29.5
	28.075	28.4		29.937499999999996	29.8
	28.0125	28.9		29.950000000000003	30.9
	28.0625	29.2		29.88125	31
	27.8625	29		29.8875	31.1
	28.150000000000002	28.8		30.21875	30.7
	28.175	29		30.25625	30.7
	27.962500000000002	28.6		30.081249999999997	30
	27.893750000000004	28		30.062499999999996	29.6
	28.118750000000002	28.1		30.45	29.5
	28.175	28.5		30.281250000000004	29.9
Jun.	28.19375	28.2		30.312499999999996	30.1
	27.675000000000004	28.5		30.09375	29.9
	27.58125	28.7		29.818749999999994	29.5
	27.83125	28.4		29.918750000000003	29.4
	27.912499999999998	28		29.9625	29.8
	27.924999999999997	26.9		30.1125	29.7
	27.793750000000006	28.1		29.993750000000006	29.4
	27.637500000000003	27.8		29.875	30.3
	27.681250000000002	28.6		29.700000000000003	30.7
	27.606250000000003	28.4		29.7375	30.7
	27.693750000000005	29		29.824999999999996	30.8
	27.65625	27.5		29.868750000000002	29.8
	27.593749999999993	28.3		29.49375	30.2
	27.637499999999996	28.1		29.849999999999994	30.2
	27.56875	27.6		29.8625	29.1
	27.79375	27.8		29.875	29.6
	27.637499999999996	27.4		29.75625	29.3
	27.475	27.4		29.725	29.3
	27.83125	28.4		29.700000000000003	29.8
	27.650000000000006	28.5		29.84375	29.8
	27.45	28.7		29.46875	29.6
	27.53125	28.2		29.668750000000003	29.5
	27.668749999999996	28		29.79375	30
	27.225	28.3		29.618749999999995	29.9
	27.21875	28		29.3625	30.6
	27.318749999999998	27.9		29.262500000000003	30.7
	27.362499999999994	27.9		29.275000000000002	30.7
	27.3375	28.1		29.275000000000002	30.8
	27.44375	28.7		29.55	30.3
	27.31875	28.6		29.456249999999997	30.8
Jul.	27.325	28.6		29.4	29.8
	27.412499999999998	28.3		29.362500000000004	29.6
	27.375000000000004	28.2		29.36875	29.4
	27.3875	27.7		29.51875	29.2
	27.64375	27.5		29.43125	29.5
	27.7	27.4		29.456249999999994	29.3
	27.425	27.7		29.206249999999997	29.7
	27.40625	28.1		29.3625	30.4
	27.437500000000004	28		29.481250000000003	29.8
	27.581249999999994	28.4		29.56875	29.7
	27.45625	28.2		29.54375	29.2
	27.425	27.2		29.65	30.1
	27.437500000000004	27.9		29.575000000000003	30.1
	27.575	27.8		29.593750000000004	29.2
	27.562500000000004	26.9		29.737499999999997	28.7
	27.543749999999996	27		29.51875	28.2
	27.537499999999998	27.4		29.70625	29.2
	27.65625	28		29.687499999999996	29.2
	27.512499999999996	27.7		29.5375	29.5
	27.55	28		29.649999999999995	29.8
	27.6375	28.5		29.6125	30.6
	27.61875	28.5		29.6125	30.7
	27.643750000000004	28.6		29.731249999999996	30.4
	27.45625	28.5		29.543750000000003	30.5
	27.549999999999997	28.4		29.44375	30.3
	27.412499999999998		28.6	29.5		30.5
	27.612499999999997		28.1	29.506249999999998		30.4
	27.474999999999998		28.3	29.53125		29.7
	27.643750000000004		27.6	29.443749999999998		30.2
	27.506249999999998		28.2	29.575		30
	27.54375		28.1	29.506249999999998		29.9
Aug.	27.2625		28	29.306250000000002		29.4
	27.20625		28.4	29.11875		29.9
	27.3625		27.3	29.468750000000004		29.4
	27.48125		27.5	29.637500000000003		29.6
	27.34375		27.4	29.687500000000004		29.6
	27.3625		27.3	29.55		29.5
	27.225		27.3	29.443749999999998		29.6
	27.125		27.1	29.525		29.5
	27.375		27.4	29.518749999999997		29.5
	27.237499999999997		27.2	29.55625		29.5
	27.2875		27.4	29.675000000000004		29.7
	27.418750000000003		27.5	29.4875		29.5
	27.218749999999996		27.2	29.21875		29.1
	27.368750000000002		27.3	29.224999999999998		29.2
	27.075		27.1	29.36875		29.4
	27.018749999999997		27.1	29.35625		29.4
	27.275000000000006		27.2	29.437500000000004		29.5
	26.981250000000003		27	29.4125		29.3
	27.33124999999999		27.3	29.193749999999998		29.2
	27.23125		27.2	29.05		29
	27.30625		27.4	29.168749999999996		29.2
	27.250000000000004		27.2	29.274999999999995		29.2
	27.174999999999997		27.2	29.3625		29.4
	27.143749999999997		27.2	29.224999999999998		29.3
	27.218749999999993		27.3	29.1625		29.2
	27.1625			29.3125
	27.262500000000003			29.281249999999996
	27.187499999999996			29.218750000000004
	27.237499999999997			29.25625
	27.349999999999994			29.206250000000004
	27.100000000000005			29.062499999999996
Sep.	26.9			28.918750000000006
	26.85			28.71875
	27.181250000000002			29.106249999999996
	27.050000000000004			29.118750000000006
	27.093749999999996			28.8
	27.14375			29.01875
	27.143749999999994			29.11875
	27.20625			29.093749999999996
	26.937499999999996			29.075000000000003
	26.98125			29.075
	27.1125			29.168750000000003
	27.043750000000003			28.950000000000003
	26.9625			28.837499999999995
	26.856249999999996			28.85625
	26.849999999999994			28.9875
	27.012499999999996			29.093749999999996
	27.16875			29.187499999999996
	27.125000000000007			28.975000000000005
	26.849999999999998			28.843750000000004
	26.8375			28.787499999999998
	26.687500000000004			28.7375
	26.5625			28.53125
	26.55			28.650000000000006
	26.606250000000003			28.612499999999994
	26.625			28.587499999999995
	26.9			28.74375
	26.924999999999997			28.74375
	27			28.712499999999995
	26.668749999999996			28.693749999999998
	26.79375			28.61875
Oct.	26.76875			28.79375
	27.074999999999996			28.8625
	26.793750000000006			28.612499999999997
	26.656249999999996			28.575000000000003
	26.724999999999998			28.599999999999998
	26.874999999999996			28.625000000000004
	26.656249999999996			28.700000000000003
	26.65			28.693749999999994
	26.643749999999997			28.724999999999998
	26.518750000000004			28.562499999999996
	26.48125			28.5625
	26.675000000000004			28.61875
	26.718749999999996			28.562500000000004
	26.487499999999994			28.731249999999992
	26.9			28.587500000000006
	26.712500000000002			28.65625
	26.85625			28.612499999999997
	26.943749999999998			28.575
	26.724999999999998			28.500000000000004
	26.568749999999998			28.65625
	26.7375			28.4
	26.437500000000004			28.312499999999996
	26.543750000000003			28.18125
	26.4875			28.437499999999996
	26.59375			28.543750000000003
	26.5			28.525000000000006
	26.443749999999998			28.43125
	26.5			28.28125
	26.212500000000006			28.20625
	26.424999999999997			28.443749999999994
	26.674999999999997			28.5
Nov.	26.7375			28.518749999999997
	26.58125			28.387499999999996
	26.81875			28.437500000000004
	26.606250000000003			28.468750000000004
	26.718750000000004			28.425000000000004
	26.675000000000004			28.40625
	26.674999999999997			28.543750000000003
	26.58125			28.350000000000005
	26.2125			28.3
	26.6			28.568749999999994
	26.575			28.41875
	26.343749999999996			28.375
	26.54375			28.281249999999996
	26.61875			28.318749999999998
	26.518749999999997			28.343750000000004
	26.5			28.281250000000004
	26.756249999999998			28.318749999999998
	26.631249999999994			28.375
	26.537499999999994			28.1875
	26.268749999999997			27.9625
	26.43125			27.94375
	26.28125			27.843749999999996
	26.29375			27.81875
	26.312500000000004			27.78125
	26.25625			27.856249999999996
	26.662499999999998			27.84375
	26.406250000000004			27.987499999999997
	26.425			27.893749999999997
	26.58125			27.956250000000008
	26.38125			27.8375
Dec.	26.431250000000002			27.7875
	26.456249999999997			27.9125
	26.24375			27.98125
	26.137500000000003			27.85
	26.406250000000004			27.70625
	26.84375			27.756249999999998
	26.55			27.787499999999998
	26.1375			27.831249999999997
	26.193750000000005			27.712500000000002
	26.324999999999996			27.73125
	26.224999999999998			27.7
	26.331249999999994			27.693749999999994
	26.56875			27.8875
	26.299999999999997			27.681250000000002
	26.225			27.643749999999997
	26.25			27.79375
	26.36			27.846666666666668

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

31°C

Highest Temp

8 Jun. 26

25°C

Lowest Temp

10 Jan. 26

Seasonal Breakdown

Hottest MonthAugust30.13°C

Coldest MonthJanuary26.05°C

Wettest MonthMay5.05mm

Windiest MonthJuly30.13km/h

Ko Samui Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in Ko Samui historically?

May is historically Ko Samui's hottest month, with average maximum temperatures around 30°C. During peak heatwave events, the highest recorded temperatures have reached 33°C on 2024-06-15.

2. What is the coldest month in Ko Samui historically?

January is Ko Samui's coldest month, with average minimum temperatures around 26°C. The all-time record low of 23°C was recorded on 2021-01-19.

3. What is the average annual rainfall in Ko Samui over the past 17 years?

Ko Samui's average annual rainfall is approximately 2004.5mm, based on records spanning 17 years.

4. How many rainy days does Ko Samui experience on average per year?

Ko Samui historically records approximately 300.1 rainy days per year. November has the highest number of rain days at an average of 28.6 days.

5. What is the all-time highest temperature ever recorded in Ko Samui?

The all-time highest temperature recorded in Ko Samui is 33°C on 2024-06-15.

6. What is the all-time lowest temperature ever recorded in Ko Samui?

The all-time lowest temperature recorded in Ko Samui is 23°C on 2021-01-19.

7. What is the windiest time of year in Ko Samui historically?

Ko Samui experiences its strongest winds during July. The historic gust record of 51.8 kph was recorded on 2025-11-20.

8. What is the highest and lowest humidity in Ko Samui during a year?

Usually, Ko Samui's humidity peaks in November at around 75.7% and drops to its lowest in May at approximately 73.02%.

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Ko Samui Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Ko Samui Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

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Ko Samui Historic Weather RecordsAnalyse hottest, coldest, windiest & wettest days

Ko Samui Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

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World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

Ko Samui Historic Weather Records
Analyse hottest, coldest, windiest & wettest days