Riga weather in December
December is one of the least pleasant months in Riga: highs of 0°C (32°F) and about 63 mm (2.5 in) of rain on average. Nights average -4°C (26°F) and cloud cover 84% (NASA POWER, 2001–2025 averages). The sea averages 5°C (41°F). It is the 6th wettest month of the year and the 3rd coolest. Compared with November, it is cooler and about as wet; January brings highs of -3°C (27°F) and 59 mm (2.3 in) of rain.
Is December a good time to visit Riga?
least pleasant month Weather score 33/100.
December is one of the least pleasant months for weather in Riga. For better conditions, consider May–Sep.
Does it rain a lot in Riga in December?
Some rain is normal: about 63 mm (2.5 in) falls in an average December. It is the 6th wettest month of the year.
How warm is Riga in December?
Days average 0°C (32°F) and nights -4°C (26°F).
Riga weather by month
| Month | High | Low | Rain | Cloud | Sea | Weather |
|---|---|---|---|---|---|---|
| January | -3°C (27°F) | -7°C (19°F) | 59 mm | 85% | 1°C (34°F) | least pleasant |
| February | -2°C (28°F) | -8°C (18°F) | 48 mm | 84% | 0°C (33°F) | least pleasant |
| March | 2°C (36°F) | -4°C (24°F) | 46 mm | 75% | 2°C (36°F) | least pleasant |
| April | 9°C (49°F) | 1°C (34°F) | 48 mm | 63% | 6°C (43°F) | fair |
| May | 16°C (60°F) | 7°C (44°F) | 51 mm | 61% | 11°C (52°F) | best |
| June | 19°C (67°F) | 11°C (52°F) | 76 mm | 66% | 17°C (63°F) | best |
| July | 22°C (72°F) | 14°C (58°F) | 82 mm | 66% | 20°C (69°F) | best |
| August | 21°C (70°F) | 14°C (56°F) | 80 mm | 64% | 20°C (68°F) | best |
| September | 17°C (62°F) | 9°C (49°F) | 59 mm | 68% | 19°C (65°F) | best |
| October | 9°C (49°F) | 4°C (39°F) | 78 mm | 75% | 12°C (54°F) | least pleasant |
| November | 4°C (39°F) | 1°C (33°F) | 74 mm | 85% | 8°C (47°F) | least pleasant |
| December | 0°C (32°F) | -4°C (26°F) | 63 mm | 84% | 5°C (41°F) | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine. Page updated . How we rate months