Latvia climate
Monthly averages for Riga, 2021–2025
In Riga, the warmest month is July, with an average high of 24°C, and the coldest is February, when nights average −4°C.
About 824 mm of rain falls in a year, on roughly 159 days. August is the wettest month (116 mm) and March the driest (38 mm).
Wind is strongest in January (16 km/h on average) and lightest in June (11 km/h).
Compared with Dublin, July afternoons are 4°C warmer, and January afternoons 7°C colder.
The hottest day in 2021–2025 reached 32.8°C (3 July 2025), and the coldest night fell to −24.4°C (18 February 2021).
Temperature
Bars run from the average night-time low to the average daytime high, in °C.
Rainfall
Average total rainfall each month, in millimetres.
Wind
Average wind speed at 10 metres each month, in km/h.
| Month | High °C | Low °C | Rain mm | Rain days | Sun h/day | Wind km/h |
|---|---|---|---|---|---|---|
| January | 1 | −4 | 72 | 16 | 1.9 | 16 |
| February | 1 | −4 | 50 | 11 | 4.0 | 14 |
| March | 7 | −1 | 38 | 10 | 7.4 | 14 |
| April | 11 | 3 | 48 | 12 | 9.6 | 14 |
| May | 16 | 7 | 75 | 11 | 12.2 | 12 |
| June | 22 | 13 | 78 | 13 | 13.8 | 11 |
| July | 24 | 15 | 100 | 17 | 13.1 | 12 |
| August | 22 | 14 | 116 | 15 | 11.3 | 12 |
| September | 18 | 11 | 52 | 11 | 9.8 | 12 |
| October | 12 | 6 | 81 | 14 | 5.5 | 15 |
| November | 5 | 1 | 54 | 12 | 2.4 | 14 |
| December | 1 | −3 | 60 | 16 | 1.6 | 14 |
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