5-day weather forecast Riga 21-05-2026
Weather forecast Riga today 21.05.2026: sunny, temperature from 9 °C to 18 °C.
Precipitation probability 86%. Wind up to 3.69 m/s (gusts 6.44 m/s). Air humidity 51–92%, atmospheric pressure 766–767 mm Hg, UV index up to 5.1.
Sunset 21:47
Moonrise 09:12 · Moonset 02:18
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 9 °C | 0% | 2% | 88% | 767 mm Hg | NNW 348° 2.39 (5.03) m/s | 0 |
| 01:00 | Clear | 9 °C | 0% | 2% | 89% | 767 mm Hg | N 352° 2.31 (4.83) m/s | 0 |
| 02:00 | Clear | 9 °C | 0% | 3% | 90% | 767 mm Hg | N 359° 2.11 (4.42) m/s | 0 |
| 03:00 | Clear | 9 °C | 0% | 3% | 90% | 767 mm Hg | N 1° 2 (4.19) m/s | 0 |
| 04:00 | Clear | 9 °C | 0% | 3% | 91% | 767 mm Hg | N 357° 1.81 (3.78) m/s | 0 |
| 05:00 |  Sunny | 9 °C | 0% | 3% | 92% | 767 mm Hg | N 358° 1.69 (3.58) m/s | 0 |
| 06:00 | Sunny | 9 °C | 0% | 4% | 90% | 767 mm Hg | N 355° 1.69 (3.58) m/s | 0.1 |
| 07:00 | Sunny | 11 °C | 0% | 4% | 83% | 767 mm Hg | N 357° 1.39 (2.56) m/s | 0.4 |
| 08:00 | Sunny | 13 °C | 0% | 4% | 75% | 767 mm Hg | NNW 340° 1.89 (2.89) m/s | 0.9 |
| 09:00 | Sunny | 14 °C | 0% | 5% | 69% | 767 mm Hg | NNW 340° 2.19 (3.08) m/s | 1.7 |
| 10:00 | Sunny | 15 °C | 0% | 5% | 64% | 767 mm Hg | NNW 340° 2.5 (3.36) m/s | 2.7 |
| 11:00 | Sunny | 16 °C | 0% | 4% | 59% | 767 mm Hg | NNW 341° 2.69 (3.53) m/s | 3.8 |
| 12:00 | Sunny | 16 °C | 0% | 4% | 56% | 767 mm Hg | NNW 344° 2.69 (3.5) m/s | 4.7 |
| 13:00 | Sunny | 17 °C | 0% | 5% | 54% | 767 mm Hg | NNW 341° 2.89 (3.72) m/s | 5.1 |
| 14:00 | Sunny | 17 °C | 0% | 6% | 53% | 767 mm Hg | NNW 340° 3 (4) m/s | 4.9 |
| 15:00 | Sunny | 17 °C | 0% | 6% | 52% | 767 mm Hg | NNW 345° 2.81 (3.75) m/s | 3.1 |
| 16:00 | Sunny | 17 °C | 0% | 7% | 51% | 767 mm Hg | NNW 346° 2.69 (3.92) m/s | 5 |
| 17:00 | Sunny | 17 °C | 0% | 9% | 51% | 766 mm Hg | N 357° 2.19 (3.39) m/s | 5 |
| 18:00 | Sunny | 18 °C | 0% | 10% | 51% | 766 mm Hg | NNE 17° 1.81 (2.83) m/s | 5 |
| 19:00 |  Patchy rain possible | 17 °C | 86% (0.03 mm/hr) | 84% | 56% | 766 mm Hg | NW 323° 2.5 (3.92) m/s | 4 |
| 20:00 | Patchy rain possible | 14 °C | 70% (0.01 mm/hr) | 73% | 69% | 766 mm Hg | NW 321° 3.69 (6.44) m/s | 3 |
| 21:00 | Patchy rain possible | 12 °C | 100% (0.07 mm/hr) | 87% | 80% | 766 mm Hg | NNW 339° 2.89 (5.39) m/s | 3 |
| 22:00 |  Light drizzle | 12 °C | 100% (0.27 mm/hr) | 100% | 87% | 766 mm Hg | NW 324° 2.31 (4.06) m/s | 0 |
| 23:00 |  Light rain shower | 12 °C | 100% (0.35 mm/hr) | 100% | 91% | 766 mm Hg | NW 310° 1.5 (2.56) m/s | 0 |
Frequently asked questions about the weather in Riga
Today in Riga the temperature ranges from 9 °C to 18 °C, wind up to 3.69 m/s. Check the detailed hourly forecast above for more information.
The precipitation probability in Riga today is 86%. View the full multi-day forecast above to see the rain chances for each upcoming day.
The wind speed in Riga today reaches up to 3.69 m/s with gusts up to 6.44 m/s. Check the detailed wind chart above for hourly wind data.
The air humidity in Riga today ranges from 51% to 92%. View the humidity chart above for hourly details.
The UV index in Riga today reaches up to 5.1. Check the UV index chart above for hourly values throughout the day.
The atmospheric pressure in Riga today ranges from 766 to 767 mm Hg. View the pressure chart above for hourly readings.
Cloud cover in Riga today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
Riga on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.