Shahriar, Tehran, Iran Climate Change Severity

62
Very High
The current climate change severity in Shahriar is Very High, with a 14.1% 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)

Shahriar 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), Shahriar temperature has changed by around +5.8%, 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
160142
-11.2%
cloudyCloudy
4142
2.4%
rainyRainy
5551
-7.2%
snowySnowy
41
-75%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Shahriar has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100

Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Shahriar experienced significant changes:

Temperature change of

+0.9 °C

Variation in annual rainfall

-20.7 %

Change in average humidity

-6.3 %

PM2.5 levels surged by

-45.5 %

Heatwave changed by

-2.4 day(s)

Coldwave changed by

+7.6 day(s)

Wind speeds changed by

+2.04 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Shahriar's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

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

Shahriar Weather Forecast 30 Days (October - November 2025)
Shahriar, Tehran, Iran

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 7, Oct.
sunnySunny
Temperature Icon24°/16°
Humidity Icon20%
Wind Icon8km/h
Wed. 8, Oct.
sunnySunny
Temperature Icon24°/17°
Humidity Icon17%
Wind Icon9km/h
Thu. 9, Oct.
sunnySunny
Temperature Icon25°/18°
Humidity Icon14%
Wind Icon14km/h
Fri. 10, Oct.
sunnySunny
Temperature Icon24°/18°
Humidity Icon14%
Wind Icon23km/h
Sat. 11, Oct.
sunnySunny
Temperature Icon22°/14°
Humidity Icon23%
Wind Icon17km/h
Sun. 12, Oct.
sunnySunny
Temperature Icon23°/15°
Humidity Icon29%
Wind Icon15km/h
Mon. 13, Oct.
sunnySunny
Temperature Icon25°/17°
Humidity Icon16%
Wind Icon8km/h
Tue. 14, Oct.
sunnySunny
Temperature Icon25°/18°
Humidity Icon15%
Wind Icon12km/h
Wed. 15, Oct.
sunnySunny
Temperature Icon25°/17°
Humidity Icon18%
Wind Icon10km/h
Thu. 16, Oct.
sunnySunny
Temperature Icon24°/17°
Humidity Icon19%
Wind Icon13km/h
Fri. 17, Oct.
sunnySunny
Temperature Icon24°/17°
Humidity Icon21%
Wind Icon12km/h
Sat. 18, Oct.
sunnySunny
Temperature Icon25°/18°
Humidity Icon17%
Wind Icon8km/h
Sun. 19, Oct.
sunnySunny
Temperature Icon24°/19°
Humidity Icon17%
Wind Icon9km/h
Mon. 20, Oct.
sunnySunny
Temperature Icon24°/17°
Humidity Icon15%
Wind Icon11km/h
Tue. 21, Oct.
patchy rain possiblePatchy rain possible
Temperature Icon18°/9°
Humidity Icon39%
Wind Icon16km/h
Wed. 22, Oct.
moderate rain at timesModerate rain at times
Temperature Icon17°/8°
Humidity Icon39%
Wind Icon14km/h
Thu. 23, Oct.
moderate rain at timesModerate rain at times
Temperature Icon18°/8°
Humidity Icon39%
Wind Icon12km/h
Fri. 24, Oct.
moderate rain at timesModerate rain at times
Temperature Icon18°/9°
Humidity Icon34%
Wind Icon14km/h
Sat. 25, Oct.
moderate rain at timesModerate rain at times
Temperature Icon19°/8°
Humidity Icon38%
Wind Icon14km/h
Sun. 26, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon18°/10°
Humidity Icon42%
Wind Icon13km/h
Mon. 27, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon46%
Wind Icon13km/h
Tue. 28, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/8°
Humidity Icon48%
Wind Icon12km/h
Wed. 29, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/8°
Humidity Icon48%
Wind Icon11km/h
Thu. 30, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/8°
Humidity Icon47%
Wind Icon12km/h
Fri. 31, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon16°/8°
Humidity Icon44%
Wind Icon13km/h
Sat. 1, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon15°/7°
Humidity Icon44%
Wind Icon12km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/7°
Humidity Icon47%
Wind Icon12km/h
Mon. 3, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon14°/7°
Humidity Icon49%
Wind Icon13km/h
Tue. 4, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon14°/6°
Humidity Icon48%
Wind Icon13km/h
Wed. 5, Nov.
heavy rain at timesHeavy rain at times
Temperature Icon14°/6°
Humidity Icon44%
Wind Icon12km/h
Thu. 6, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon14°/6°
Humidity Icon46%
Wind Icon12km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 9, Oct.

25.4°C

Low will be onTue. 4, Nov.

5.6°C

HumidityHumidity

High will be onMon. 3, Nov.

49%

Low will be onThu. 9, Oct.

14%

Wind SpeedWind Speed

High will be onFri. 10, Oct.

22.7km/h

Low will be onTue. 7, Oct.

7.6km/h

PrecipitationPrecipitation

High will be onSun. 2, Nov.

3mm

Low will be onTue. 21, Oct.

0.5mm

Ultraviolet IndexUV

High will be onMon. 13, Oct.

6

Low will be onTue. 7, Oct.

1.5

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