Rasht, Iran climate
Csa Hot-summer Mediterranean
Rasht has a seasonal mild-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is July with an average daily high near 30°C, while the coldest is February averaging around 5°C at night. Precipitation totals about 1496 mm a year and is strongly seasonal — November alone averages 274 mm while May barely receives 19 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsRasht climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 10 | 13 | 16 | 23 | 28 | 30 | 30 | 27 | 22 | 16 | 13 |
| Avg temp (°C) | 9 | 8 | 10 | 14 | 20 | 25 | 27 | 27 | 24 | 19 | 14 | 11 |
| Avg low (°C) | 6 | 5 | 7 | 11 | 16 | 22 | 24 | 24 | 21 | 16 | 12 | 8 |
| Precipitation (mm) | 132 | 105 | 79 | 65 | 19 | 33 | 47 | 105 | 238 | 236 | 274 | 164 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 11 | 10 | 13 | 16 | 23 | 28 |
| Avg temp (°C) | 9 | 8 | 10 | 14 | 20 | 25 |
| Avg low (°C) | 6 | 5 | 7 | 11 | 16 | 22 |
| Precipitation (mm) | 132 | 105 | 79 | 65 | 19 | 33 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 27 | 22 | 16 | 13 |
| Avg temp (°C) | 27 | 27 | 24 | 19 | 14 | 11 |
| Avg low (°C) | 24 | 24 | 21 | 16 | 12 | 8 |
| Precipitation (mm) | 47 | 105 | 238 | 236 | 274 | 164 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 8 | 8 | 7 | 5 | 3 | 4 | 5 | 8 | 10 | 10 | 9 |
| Days with high ≥ 32°C (days) | — | — | 0.1 | 0.1 | 0.0 | 1 | 4 | 4 | 0.2 | 0.2 | — | — |
| Days with low ≤ 0°C (days) | 0.5 | 0.5 | 0.0 | — | — | — | — | — | — | — | 0.1 | 0.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 8 | 8 | 7 | 5 | 3 |
| Days with high ≥ 32°C (days) | — | — | 0.1 | 0.1 | 0.0 | 1 |
| Days with low ≤ 0°C (days) | 0.5 | 0.5 | 0.0 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 5 | 8 | 10 | 10 | 9 |
| Days with high ≥ 32°C (days) | 4 | 4 | 0.2 | 0.2 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.1 | 0.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 70 | 73 | 73 | 63 | 53 | 58 | 56 | 62 | 66 | 70 | 69 |
| Clear days (≤ 30% cloud) | 4 | 3 | 3 | 3 | 4 | 8 | 6 | 8 | 6 | 5 | 3 | 3 |
| Partly cloudy days (30–70%) | 11 | 9 | 8 | 9 | 12 | 13 | 14 | 13 | 10 | 10 | 10 | 11 |
| Cloudy days (≥ 70%) | 17 | 17 | 20 | 19 | 14 | 9 | 11 | 11 | 13 | 16 | 17 | 17 |
| Relative humidity (%) | 76 | 76 | 76 | 74 | 71 | 67 | 68 | 68 | 72 | 75 | 76 | 76 |
| Wind speed (mph) | 5.5 | 5.5 | 4.9 | 4.4 | 4.3 | 5.0 | 5.3 | 5.3 | 5.6 | 5.7 | 5.7 | 5.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 70 | 73 | 73 | 63 | 53 |
| Clear days (≤ 30% cloud) | 4 | 3 | 3 | 3 | 4 | 8 |
| Partly cloudy days (30–70%) | 11 | 9 | 8 | 9 | 12 | 13 |
| Cloudy days (≥ 70%) | 17 | 17 | 20 | 19 | 14 | 9 |
| Relative humidity (%) | 76 | 76 | 76 | 74 | 71 | 67 |
| Wind speed (mph) | 5.5 | 5.5 | 4.9 | 4.4 | 4.3 | 5.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 56 | 62 | 66 | 70 | 69 |
| Clear days (≤ 30% cloud) | 6 | 8 | 6 | 5 | 3 | 3 |
| Partly cloudy days (30–70%) | 14 | 13 | 10 | 10 | 10 | 11 |
| Cloudy days (≥ 70%) | 11 | 11 | 13 | 16 | 17 | 17 |
| Relative humidity (%) | 68 | 68 | 72 | 75 | 76 | 76 |
| Wind speed (mph) | 5.3 | 5.3 | 5.6 | 5.7 | 5.7 | 5.4 |
Methodology & sources
Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Precipitation — 1991–2020 normals computed from 21 years of daily observations at Anzali, a weather station, about 24 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.