5-day weather forecast Riga 18-05-2026

Weather forecast Riga today 18.05.2026: partly cloudy, temperature from 8 °C to 14 °C.

Precipitation probability 100%. Wind up to 6.31 m/s (gusts 9.64 m/s). Air humidity 67–98%, atmospheric pressure 758–764 mm Hg, UV index up to 2.3.

Sunrise 05:00
Sunset 21:42
Waxing Crescent2% illuminated
Moonrise 05:02 · Moonset below the horizon
Chart
Table
Mon, May 18, 2026
TemperatureRain chanceCloud coverHumidityPressureWindUV Index
00:00Weather
Partly cloudy
8 °C0% 29%78%764 mm HgN 5° 3.5 (7.14) m/s0
01:00Weather
Partly cloudy
8 °C0% 36%78%764 mm HgN 9° 3.5 (6.97) m/s0
02:00Weather
Partly cloudy
8 °C0% 30%76%764 mm HgNNE 14° 3.81 (7.44) m/s0
03:00Weather
Partly cloudy
8 °C0% 33%76%764 mm HgN 10° 3.81 (7.36) m/s0
04:00Weather
Partly cloudy
8 °C0% 42%77%764 mm HgN 9° 3.5 (6.78) m/s0
05:00Weather
Partly cloudy
8 °C0% 57%78%764 mm HgNNE 13° 3.39 (6.56) m/s0
06:00Weather
Partly cloudy
8 °C0% 31%76%764 mm HgNNE 16° 3.69 (6.81) m/s0.1
07:00Weather
Cloudy
9 °C0% 75%74%764 mm HgNNE 14° 3.81 (6.25) m/s0.3
08:00Weather
Cloudy
10 °C0% 84%74%763 mm HgNNE 16° 4.19 (6.11) m/s0.7
09:00Weather
Partly cloudy
12 °C0% 52%71%763 mm HgNNE 18° 4.39 (6.08) m/s1
10:00Weather
Cloudy
12 °C0% 78%75%763 mm HgN 3° 4.5 (6.61) m/s0.9
11:00Weather
Light drizzle
14 °C100% (0.24 mm/hr)0%67%762 mm HgNNE 16° 4.5 (6.64) m/s1
12:00Weather
Light drizzle
11 °C100% (0.25 mm/hr)98%83%762 mm HgN 8° 4.11 (7) m/s1.2
13:00Weather
Patchy light drizzle
12 °C100% (0.16 mm/hr)63%78%762 mm HgNNE 14° 4.19 (6.69) m/s2.3
14:00Weather
Light rain
12 °C100% (0.76 mm/hr)100%85%762 mm HgN 8° 3.61 (5.72) m/s1.2
15:00Weather
Patchy light rain
11 °C100% (1.59 mm/hr)72%94%761 mm HgN 7° 4.5 (7.31) m/s0.6
16:00Weather
Light rain
10 °C100% (2.37 mm/hr)100%97%761 mm HgNNE 24° 5.39 (8.5) m/s0.4
17:00Weather
Light drizzle
10 °C100% (0.33 mm/hr)100%96%761 mm HgNNE 20° 6.31 (9.64) m/s0.2
18:00Weather
Light drizzle
10 °C100% (0.73 mm/hr)100%96%761 mm HgNNE 15° 6.11 (9.56) m/s0.1
19:00Weather
Moderate or heavy rain with thunder
10 °C100% (0.78 mm/hr)100%97%760 mm HgN 11° 6 (9.36) m/s0.1
20:00Weather
Light drizzle
10 °C100% (0.29 mm/hr)100%97%759 mm HgNNE 12° 5.5 (8.56) m/s0
21:00Weather
Patchy rain possible
10 °C100% (0.15 mm/hr)100%97%759 mm HgN 7° 5 (7.72) m/s0
22:00Weather
Thundery outbreaks possible
10 °C100% (0.14 mm/hr)100%97%758 mm HgN 8° 4.31 (6.83) m/s0
23:00Weather
Light drizzle
10 °C100% (0.22 mm/hr)100%98%758 mm HgN 8° 3.61 (5.72) m/s0
Mon, May 18, 2026

Frequently asked questions about the weather in Riga

Today in Riga the temperature ranges from 8 °C to 14 °C, wind up to 6.31 m/s. Check the detailed hourly forecast above for more information.

The precipitation probability in Riga today is 100%. 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 6.31 m/s with gusts up to 9.64 m/s. Check the detailed wind chart above for hourly wind data.

The air humidity in Riga today ranges from 67% to 98%. View the humidity chart above for hourly details.

The UV index in Riga today reaches up to 2.3. Check the UV index chart above for hourly values throughout the day.

The atmospheric pressure in Riga today ranges from 758 to 764 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.