Gilan Province weather in December
December is one of the least pleasant months in Gilan Province: highs of 13°C (55°F) and about 110 mm (4.3 in) of rain on average. Nights average 8°C (46°F) and cloud cover 68% (NASA POWER, 2001–2025 averages). It is the 4th wettest month of the year and the 3rd coolest. Compared with November, it is cooler and drier; January brings highs of 11°C (51°F) and 96 mm (3.8 in) of rain.
Figures are long-term averages for Rasht, the largest city in Gilan Province. See below for other places.
Is December a good time to visit Gilan Province?
least pleasant month Weather score 46/100.
December is one of the least pleasant months for weather in Gilan Province. For better conditions, consider May–Aug.
Does it rain a lot in Gilan Province in December?
Some rain is normal: about 110 mm (4.3 in) falls in an average December. It is the 4th wettest month of the year.
How warm is Gilan Province in December?
Days average 13°C (55°F) and nights 8°C (46°F).
Gilan Province weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 11°C (51°F) | 5°C (42°F) | 96 mm | 66% | least pleasant |
| February | 11°C (52°F) | 5°C (41°F) | 83 mm | 70% | least pleasant |
| March | 14°C (57°F) | 7°C (45°F) | 69 mm | 73% | fair |
| April | 17°C (63°F) | 11°C (51°F) | 57 mm | 73% | fair |
| May | 23°C (73°F) | 16°C (61°F) | 25 mm | 62% | best |
| June | 27°C (80°F) | 21°C (69°F) | 26 mm | 50% | best |
| July | 29°C (83°F) | 23°C (73°F) | 38 mm | 56% | best |
| August | 29°C (84°F) | 24°C (74°F) | 64 mm | 53% | best |
| September | 26°C (79°F) | 21°C (70°F) | 122 mm | 59% | fair |
| October | 22°C (72°F) | 17°C (62°F) | 162 mm | 63% | fair |
| November | 16°C (62°F) | 11°C (53°F) | 167 mm | 68% | least pleasant |
| December | 13°C (55°F) | 8°C (46°F) | 110 mm | 68% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Gilan Province in December
Weather can differ a lot within Gilan Province: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Rasht | 13°C (55°F) | 8°C (46°F) | 110 mm | least pleasant |
| Bandar-e Anzalī | 13°C (55°F) | 8°C (46°F) | 110 mm | least pleasant |
| Lāhījān | 9°C (49°F) | 1°C (33°F) | 94 mm | least pleasant |
| Langarūd | 9°C (49°F) | 1°C (33°F) | 94 mm | least pleasant |
| Rūdsar | 9°C (49°F) | 1°C (33°F) | 94 mm | least pleasant |
| Şowme‘eh Sarā | 13°C (55°F) | 8°C (46°F) | 110 mm | least pleasant |
| Hashtpar | 6°C (44°F) | -1°C (30°F) | 54 mm | least pleasant |
| Āstāneh-ye Ashrafīyeh | 14°C (57°F) | 10°C (50°F) | 110 mm | least pleasant |
| Āstārā | 9°C (47°F) | 1°C (35°F) | 58 mm | least pleasant |
| Fūman | 10°C (49°F) | 0°C (32°F) | 89 mm | least pleasant |
| Khomām | 13°C (55°F) | 8°C (46°F) | 110 mm | least pleasant |
| Sīāhkal | 9°C (49°F) | 1°C (33°F) | 94 mm | least pleasant |