San Rafael, California, United States Climate Change Severity

52
High
The current climate change severity in San Rafael is High, with a 11.4% 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 Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

San Rafael 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), San Rafael temperature has changed by around -8.6%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
9414
-85.1%
cloudyCloudy
7317
-76.7%
rainyRainy
4438
-13.6%
snowySnowy
00
0%
mistyMisty
082
100%

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

Climate Change Indicators:

Over the past 15 years, San Rafael has experienced measurable shifts in key climate parameters, contributing to the current severity score of 52 (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

52/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, San Rafael experienced significant changes:

Temperature change of

-1.2 °C

Variation in annual rainfall

-16.6 %

Change in average humidity

+11.1 %

PM2.5 levels surged by

-21.8 %

Heatwave changed by

-6.2 day(s)

Coldwave changed by

-2.8 day(s)

Wind speeds changed by

+0.3 km/h

These indicators show that San Rafael 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 Aug.

San Rafael Weather Forecast 30 Days (September - October 2025)
San Rafael, California, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Thu. 25, Sep.
sunnySunny
Temperature Icon30°/13°
Humidity Icon69%
Wind Icon20km/h
Fri. 26, Sep.
mistMist
Temperature Icon22°/13°
Humidity Icon82%
Wind Icon16km/h
Sat. 27, Sep.
mistMist
Temperature Icon17°/14°
Humidity Icon92%
Wind Icon23km/h
Sun. 28, Sep.
partly cloudyPartly Cloudy
Temperature Icon19°/14°
Humidity Icon85%
Wind Icon19km/h
Mon. 29, Sep.
moderate rainModerate rain
Temperature Icon18°/15°
Humidity Icon84%
Wind Icon16km/h
Tue. 30, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon18°/16°
Humidity Icon89%
Wind Icon19km/h
Wed. 1, Oct.
sunnySunny
Temperature Icon20°/13°
Humidity Icon73%
Wind Icon12km/h
Thu. 2, Oct.
sunnySunny
Temperature Icon21°/14°
Humidity Icon63%
Wind Icon12km/h
Fri. 3, Oct.
sunnySunny
Temperature Icon23°/15°
Humidity Icon60%
Wind Icon13km/h
Sat. 4, Oct.
sunnySunny
Temperature Icon25°/16°
Humidity Icon52%
Wind Icon11km/h
Sun. 5, Oct.
sunnySunny
Temperature Icon23°/17°
Humidity Icon59%
Wind Icon11km/h
Mon. 6, Oct.
sunnySunny
Temperature Icon22°/15°
Humidity Icon69%
Wind Icon13km/h
Tue. 7, Oct.
sunnySunny
Temperature Icon19°/13°
Humidity Icon81%
Wind Icon15km/h
Wed. 8, Oct.
sunnySunny
Temperature Icon20°/13°
Humidity Icon69%
Wind Icon13km/h
Thu. 9, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon21°/12°
Humidity Icon69%
Wind Icon15km/h
Fri. 10, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon20°/13°
Humidity Icon75%
Wind Icon16km/h
Sat. 11, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon21°/12°
Humidity Icon72%
Wind Icon16km/h
Sun. 12, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon22°/13°
Humidity Icon62%
Wind Icon14km/h
Mon. 13, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon65%
Wind Icon15km/h
Tue. 14, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon22°/14°
Humidity Icon68%
Wind Icon14km/h
Wed. 15, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon22°/14°
Humidity Icon65%
Wind Icon14km/h
Thu. 16, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon22°/14°
Humidity Icon66%
Wind Icon14km/h
Fri. 17, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon21°/13°
Humidity Icon69%
Wind Icon16km/h
Sat. 18, Oct.
sunnySunny
Temperature Icon21°/13°
Humidity Icon70%
Wind Icon16km/h
Sun. 19, Oct.
moderate rain at timesModerate rain at times
Temperature Icon21°/13°
Humidity Icon70%
Wind Icon16km/h
Mon. 20, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon20°/12°
Humidity Icon73%
Wind Icon16km/h
Tue. 21, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon20°/12°
Humidity Icon75%
Wind Icon15km/h
Wed. 22, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/13°
Humidity Icon75%
Wind Icon14km/h
Thu. 23, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon20°/12°
Humidity Icon73%
Wind Icon14km/h
Fri. 24, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/13°
Humidity Icon73%
Wind Icon17km/h
Sat. 25, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/13°
Humidity Icon71%
Wind Icon16km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 25, Sep.

30.2°C

Low will be onSat. 11, Oct.

12.2°C

HumidityHumidity

High will be onSat. 27, Sep.

92%

Low will be onSat. 4, Oct.

52%

Wind SpeedWind Speed

High will be onSat. 27, Sep.

22.7km/h

Low will be onSat. 4, Oct.

10.8km/h

PrecipitationPrecipitation

High will be onMon. 29, Sep.

8.7mm

Low will be onSun. 28, Sep.

0.05mm

Ultraviolet IndexUV

High will be onWed. 1, Oct.

5

Low will be onTue. 30, Sep.

4

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