Delta, British Columbia, Canada Climate Change Severity

48
High
The current climate change severity in Delta is High, with a 13.7% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Delta Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Delta temperature has changed by around -6.8%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Sep. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
5822
-62.06%
cloudyCloudy
5941
-30.5%
rainyRainy
12486
-30.6%
snowySnowy
22
0%
mistyMisty
039
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 15 years, Delta has experienced measurable shifts in key climate parameters, contributing to the current severity score of 48 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

48/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Delta experienced significant changes:

Temperature change of

-0.7 °C

Variation in annual rainfall

+12.1 %

Change in average humidity

+7.9 %

PM2.5 levels surged by

+14.8 %

Heatwave changed by

-3.1 day(s)

Coldwave changed by

-1 day(s)

Wind speeds changed by

+1.9 km/h

These indicators show that Delta is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

Check how we calculate Climate Change Severity
Based on data from Jan. to Sep.

Delta Weather Forecast 30 Days (October - November 2025)
Delta, British Columbia, Canada

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 3, Oct.
mistMist
Temperature Icon18°/9°
Humidity Icon90%
Wind Icon12km/h
Sat. 4, Oct.
mistMist
Temperature Icon13°/12°
Humidity Icon93%
Wind Icon12km/h
Sun. 5, Oct.
sunnySunny
Temperature Icon17°/11°
Humidity Icon72%
Wind Icon15km/h
Mon. 6, Oct.
sunnySunny
Temperature Icon14°/11°
Humidity Icon68%
Wind Icon10km/h
Tue. 7, Oct.
sunnySunny
Temperature Icon14°/12°
Humidity Icon72%
Wind Icon10km/h
Wed. 8, Oct.
partly cloudyPartly Cloudy
Temperature Icon14°/12°
Humidity Icon71%
Wind Icon17km/h
Thu. 9, Oct.
overcastOvercast
Temperature Icon13°/12°
Humidity Icon86%
Wind Icon29km/h
Fri. 10, Oct.
moderate rainModerate rain
Temperature Icon12°/11°
Humidity Icon92%
Wind Icon22km/h
Sat. 11, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/11°
Humidity Icon86%
Wind Icon19km/h
Sun. 12, Oct.
sunnySunny
Temperature Icon13°/10°
Humidity Icon80%
Wind Icon10km/h
Mon. 13, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/10°
Humidity Icon79%
Wind Icon18km/h
Tue. 14, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon11°/10°
Humidity Icon87%
Wind Icon33km/h
Wed. 15, Oct.
sunnySunny
Temperature Icon11°/8°
Humidity Icon71%
Wind Icon20km/h
Thu. 16, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/10°
Humidity Icon81%
Wind Icon18km/h
Fri. 17, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon14°/9°
Humidity Icon82%
Wind Icon14km/h
Sat. 18, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon13°/9°
Humidity Icon84%
Wind Icon14km/h
Sun. 19, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon14°/9°
Humidity Icon84%
Wind Icon13km/h
Mon. 20, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon13°/9°
Humidity Icon84%
Wind Icon15km/h
Tue. 21, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon84%
Wind Icon16km/h
Wed. 22, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon13°/8°
Humidity Icon83%
Wind Icon15km/h
Thu. 23, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon82%
Wind Icon15km/h
Fri. 24, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/7°
Humidity Icon79%
Wind Icon17km/h
Sat. 25, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon79%
Wind Icon19km/h
Sun. 26, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon79%
Wind Icon19km/h
Mon. 27, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/7°
Humidity Icon77%
Wind Icon18km/h
Tue. 28, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon81%
Wind Icon15km/h
Wed. 29, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon82%
Wind Icon16km/h
Thu. 30, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon82%
Wind Icon19km/h
Fri. 31, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon81%
Wind Icon16km/h
Sat. 1, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon83%
Wind Icon16km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon84%
Wind Icon18km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 3, Oct.

17.8°C

Low will be onMon. 27, Oct.

6.7°C

HumidityHumidity

High will be onSat. 4, Oct.

93%

Low will be onMon. 6, Oct.

68%

Wind SpeedWind Speed

High will be onTue. 14, Oct.

32.8km/h

Low will be onMon. 6, Oct.

10.4km/h

PrecipitationPrecipitation

High will be onSun. 19, Oct.

16.7mm

Low will be onThu. 9, Oct.

0.08mm

Ultraviolet IndexUV

High will be onWed. 8, Oct.

4

Low will be onThu. 23, Oct.

2

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