San Leandro, California, United States Climate Change Severity

57
High
The current climate change severity in San Leandro is High, with a 20.2% 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 Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

San Leandro 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 Leandro temperature has changed by around -14.3%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
9911
-88.8%
cloudyCloudy
5425
-53.7%
rainyRainy
4538
-15.5%
snowySnowy
00
0%
mistyMisty
024
100%

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

Climate Change Indicators:

Over the past 15 years, San Leandro has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (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

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, San Leandro experienced significant changes:

Temperature change of

-1.9 °C

Variation in annual rainfall

-10.9 %

Change in average humidity

+17.8 %

PM2.5 levels surged by

-23.7 %

Heatwave changed by

-3.8 day(s)

Coldwave changed by

+9.7 day(s)

Wind speeds changed by

+0.3 km/h

These indicators show that San Leandro 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 Jul.

San Leandro Weather Forecast 30 Days (August - September 2025)
San Leandro, California, United States

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 10, Aug.
sunnySunny
Temperature Icon26°/12°
Humidity Icon71%
Wind Icon17km/h
Mon. 11, Aug.
partly cloudyPartly Cloudy
Temperature Icon24°/11°
Humidity Icon74%
Wind Icon17km/h
Tue. 12, Aug.
partly cloudyPartly Cloudy
Temperature Icon25°/11°
Humidity Icon75%
Wind Icon16km/h
Wed. 13, Aug.
sunnySunny
Temperature Icon23°/13°
Humidity Icon75%
Wind Icon18km/h
Thu. 14, Aug.
sunnySunny
Temperature Icon21°/12°
Humidity Icon74%
Wind Icon16km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon23°/12°
Humidity Icon74%
Wind Icon16km/h
Sat. 16, Aug.
sunnySunny
Temperature Icon25°/12°
Humidity Icon72%
Wind Icon17km/h
Sun. 17, Aug.
sunnySunny
Temperature Icon25°/12°
Humidity Icon72%
Wind Icon18km/h
Mon. 18, Aug.
sunnySunny
Temperature Icon25°/13°
Humidity Icon72%
Wind Icon17km/h
Tue. 19, Aug.
sunnySunny
Temperature Icon24°/11°
Humidity Icon73%
Wind Icon15km/h
Wed. 20, Aug.
sunnySunny
Temperature Icon23°/11°
Humidity Icon75%
Wind Icon16km/h
Thu. 21, Aug.
sunnySunny
Temperature Icon23°/12°
Humidity Icon73%
Wind Icon14km/h
Fri. 22, Aug.
sunnySunny
Temperature Icon23°/11°
Humidity Icon75%
Wind Icon16km/h
Sat. 23, Aug.
partly cloudyPartly Cloudy
Temperature Icon19°/12°
Humidity Icon78%
Wind Icon21km/h
Sun. 24, Aug.
sunnySunny
Temperature Icon25°/15°
Humidity Icon68%
Wind Icon15km/h
Mon. 25, Aug.
sunnySunny
Temperature Icon25°/14°
Humidity Icon68%
Wind Icon14km/h
Tue. 26, Aug.
sunnySunny
Temperature Icon25°/14°
Humidity Icon66%
Wind Icon15km/h
Wed. 27, Aug.
sunnySunny
Temperature Icon26°/14°
Humidity Icon63%
Wind Icon16km/h
Thu. 28, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon26°/15°
Humidity Icon64%
Wind Icon16km/h
Fri. 29, Aug.
sunnySunny
Temperature Icon25°/15°
Humidity Icon66%
Wind Icon15km/h
Sat. 30, Aug.
sunnySunny
Temperature Icon25°/14°
Humidity Icon67%
Wind Icon16km/h
Sun. 31, Aug.
sunnySunny
Temperature Icon25°/14°
Humidity Icon67%
Wind Icon15km/h
Mon. 1, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon27°/15°
Humidity Icon61%
Wind Icon15km/h
Tue. 2, Sep.
sunnySunny
Temperature Icon26°/15°
Humidity Icon63%
Wind Icon15km/h
Wed. 3, Sep.
sunnySunny
Temperature Icon26°/15°
Humidity Icon64%
Wind Icon14km/h
Thu. 4, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon25°/14°
Humidity Icon65%
Wind Icon14km/h
Fri. 5, Sep.
sunnySunny
Temperature Icon26°/14°
Humidity Icon65%
Wind Icon15km/h
Sat. 6, Sep.
sunnySunny
Temperature Icon27°/15°
Humidity Icon57%
Wind Icon14km/h
Sun. 7, Sep.
sunnySunny
Temperature Icon27°/15°
Humidity Icon59%
Wind Icon15km/h
Mon. 8, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon26°/15°
Humidity Icon62%
Wind Icon15km/h
Tue. 9, Sep.
sunnySunny
Temperature Icon26°/15°
Humidity Icon62%
Wind Icon14km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 6, Sep.

27.4°C

Low will be onTue. 12, Aug.

11.2°C

HumidityHumidity

High will be onSat. 23, Aug.

78%

Low will be onSat. 6, Sep.

57%

Wind SpeedWind Speed

High will be onSat. 23, Aug.

20.5km/h

Low will be onMon. 25, Aug.

13.7km/h

PrecipitationPrecipitation

High will be onWed. 13, Aug.

0.01mm

Low will be onWed. 13, Aug.

0.01mm

Ultraviolet IndexUV

High will be onTue. 2, Sep.

6

Low will be onSat. 23, Aug.

4

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