Koganei Historic Weather Records

Analyse hottest, coldest, windiest & wettest days

Koganei Weather Trend Graph


Temperature (°C)
.
Months
Max Temp.
Historic Max Temp.
Min Temp.
Historic Min Temp.

Yearly Summary 2026


38°C
Highest Temp
23 Jul. 26

-2°C
Lowest Temp
9 Feb. 26


Seasonal Breakdown

Hottest MonthJuly31.88°C

Coldest MonthJanuary3.31°C

Wettest MonthJune12.35mm

Windiest MonthApril25.71km/h

Frequently Asked Questions


1. What is the hottest month in Koganei historically?

August is historically Koganei's hottest month, with average maximum temperatures around 32°C. During peak heatwave events, the highest recorded temperatures have reached 38°C on 2026-07-23.

2. What is the coldest month in Koganei historically?

January is Koganei's coldest month, with average minimum temperatures around 1°C. The all-time record low of -8°C was recorded on 2013-01-18.

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

Koganei's average annual rainfall is approximately 1669.1mm, based on records spanning 17 years.

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

Koganei historically records approximately 204.4 rainy days per year. September has the highest number of rain days at an average of 21.2 days.

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

The all-time highest temperature recorded in Koganei is 38°C on 2026-07-23.

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

The all-time lowest temperature recorded in Koganei is -8°C on 2013-01-18.

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

Koganei experiences its strongest winds during April. The historic gust record of 81.1 kph was recorded on 2018-10-01.

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

Usually, Koganei's humidity peaks in June at around 71.2% and drops to its lowest in January at approximately 51.8%.