Temperature
Cool by day, cold at night.
59°Ftypical May high
Typical range
Cool days and plenty of sun.
Cool by day, cold at night.
Several rainy days. About 10 wet days, fewer than in most months.
Plenty of sun this month.
In May, afternoons feel about 51° and nights feel near 41°.
Partly cloudy skies this month.
Calm winds are typical in May.
May late afternoons are around 58°F, easing to about 56°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 31 | 25 | 1.9 | 12 | 1.0 | 87 |
| Feb | 31 | 24 | 1.5 | 10 | 2.2 | 84 |
| Mar | 38 | 28 | 1.4 | 10 | 4.1 | 79 |
| Apr | 49 | 36 | 1.6 | 9 | 6.1 | 74 |
| May | 59 | 45 | 2.1 | 10 | 8.5 | 72 |
| Jun | 66 | 54 | 2.9 | 11 | 9.6 | 74 |
| Jul | 71 | 59 | 3.2 | 13 | 8.5 | 76 |
| Aug | 70 | 58 | 3.3 | 13 | 7.4 | 77 |
| Sep | 62 | 51 | 2.5 | 11 | 5.1 | 79 |
| Oct | 51 | 43 | 3.3 | 15 | 3.0 | 83 |
| Nov | 41 | 36 | 2.4 | 14 | 1.3 | 87 |
| Dec | 34 | 29 | 2.0 | 13 | 0.8 | 87 |
Similar climates
Want a side-by-side climate view? Compare Riga with Helsinki.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology