5-day weather forecast Tehran Sep 20, 2026

31°25° · Sunny

Weather forecast Tehran Sunday Sep 20, 2026: sunny, temperature from 25 °C to 31 °C.

Precipitation probability 2%. Wind up to 4.89 m/s (gusts 7.81 m/s). Air humidity 10–20%, atmospheric pressure 758–762 mm Hg, UV index up to 7.5.

Sunrise 05:51
Sunset 18:05
Waxing Gibbous73% illuminated
Moonrise 14:55 · Moonset does not set today
Chart
Table

Forecast from 25 °C to 31 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)272626262525252627272829303031313131303027272726
Precipitation (mm/hr)000000000000000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)302100070000000051840133753
Rain chance (%)000000010000000001001210

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)0.610.50.890.810.610.611.1112.113.393.693.613.813.893.693.814.314.394.894.312.812.191.611.11
Wind gust (m/s)1.331.391.51.421.311.52.531.832.924.224.313.923.924.54.6155.1155.535.617.812.611.922
Wind direction (°)NW 320°NNE 13°ENE 59°ENE 57°NE 37°ESE 111°E 97°S 176°S 171°SSE 160°SSE 156°SE 142°SE 139°SE 135°SE 134°SE 145°SE 142°SSE 148°SSE 156°SSE 154°WNW 294°NW 309°NW 320°NW 309°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)151515151617181717161412101010101010111120201919

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)760760760760760761761761762762762761761760759758758758758759760760760760

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index00000000.72.146.17.47.56.34.32.30.90.2000000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)56.840.429.723.519.417.821.729.427.321.818.218.21920.321.322.423.524.33034.238.345.858.667.3
PM10 (µg/m³)73.355.943.334.62926.529.838.644.444.74751.955.456.956.65655.252.551.252.256.166.180.389.2
Ozone (O₃) (µg/m³)67910981432577994106116127137135113805133191054
NO₂ (µg/m³)114.2107.99990.182.174.166.459.552.945.334.923.515.812.112.119.438.965.788.7104.2115.9123.9127.4127.1
SO₂ (µg/m³)46.640.634.530.73133.53534.533.130.324.918.313.51212.414.217.321.727.635.945.653.759.363.2
CO (µg/m³)135511127415437161062128512571106918681408220153171292560930128416491997212818841423

Tehran on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.