worldweather

Weather in Riga - 14-day forecast

Detailed weather forecast for Riga, Latvia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Riga
today🌧️ 15°💧 7.2 mm
Sun🌧️ 16°💧 1.7 mm
Mon☁️ 19°💧 0.2 mm
Tue🌤️ 19°💧 0.2 mm
Wed🌧️ 19°💧 2.9 mm
Thu🌧️ 18°💧 1.6 mm
Fri🌧️ 18°💧 0.5 mm
Sat🌧️ 16°💧 3.9 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Saturday 5 Sept in Riga, the forecast high is 15°C. Typical daytime temperatures at this time of year range from 16°C to 20°C, so it will be cooler than usual. It is cooler than 86% of similar days.

15°Ccooler than usual
usually 16°C–20°C
cooler than 86% of similar days
night: near normal rain: exceptionally wet wind: typical
16°Ccooler than usual
usually 16°C–20°C
cooler than 75% of similar days
night: warmer than usual rain: typical rainfall wind: typical
19°Cnear normal
usually 15°C–20°C
night: exceptionally warm rain: typical rainfall wind: lighter than usual
19°Cnear normal
usually 15°C–20°C
night: exceptionally warm rain: typical rainfall wind: typical
19°Cwarmer than usual
usually 15°C–20°C
warmer than 79% of similar days
night: exceptionally warm rain: more rain than usual wind: lighter than usual
18°Cnear normal
usually 15°C–19°C
night: exceptionally warm rain: typical rainfall wind: typical
18°Cnear normal
usually 14°C–19°C
night: exceptionally warm rain: typical rainfall wind: lighter than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
10°20°30° 1981: 18°C1982: 15°C1983: 16°C1984: 16°C1985: 13°C1986: 14°C1987: 16°C1988: 17°C1989: 18°C1990: 14°C1991: 13°C1992: 17°C1993: 13°C1994: 18°C1995: 19°C1996: 13°C1997: 16°C1998: 17°C1999: 21°C2000: 15°C2001: 16°C2002: 21°C2003: 17°C2004: 17°C2005: 20°C2006: 18°C2007: 16°C2008: 19°C2009: 19°C2010: 16°C2011: 18°C2012: 17°C2013: 19°C2014: 20°C2015: 17°C2016: 21°C2017: 16°C2018: 22°C2019: 21°C2020: 17°C2021: 19°C2022: 15°C2023: 21°C2024: 22°C2025: 23°C 2026 forecast: 18°C current forecast 18°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 18°C by day. The coolest year was 1993 (13°C) and the warmest was 2025 (23°C). The current forecast averages 18°C - close to the historical median.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

Weather warnings - Riga

No active weather warnings for Riga (region: Vidzeme). The national weather service is not forecasting dangerous conditions.

14-day forecast - Riga

Riga - 14-day weather forecast infographic

Riga 30 & 45-day weather - long-range outlook

Next 16 days · forecast
16°
around 13° at night · days with rain: 13
Weeks 3-4 · avg for September
17°
around 10° at night · rain chance 34%
Weeks 5-7 · avg for October
10°
around 4° at night · rain chance 40%
The 30 & 45-day outlook for Riga: the next 16 days are a numerical forecast updated daily - on average 16° by day and 13° at night. Further out we rely on multi-year climate averages: around 17° in September, and about 10° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Riga

Saturday5 September 2026
🌧️15°moderate rain
sunrise 06:33 · sunset 20:11 · night 11° · evening 13° · rain 7.19 mm · humidity 82% · wind 5 m/s · clouds 89%
Sunday6 September 2026
🌧️16°light rain
sunrise 06:35 · sunset 20:08 · night 13° · evening 15° · rain 1.67 mm · humidity 60% · wind 7 m/s · clouds 13%
Monday7 September 2026
☁️19°broken clouds
sunrise 06:37 · sunset 20:05 · night 14° · evening 17° · rain 0.21 mm · humidity 54% · wind 4 m/s · clouds 58%
Tuesday8 September 2026
🌤️19°scattered clouds
sunrise 06:39 · sunset 20:02 · night 17° · evening 20° · rain 0.23 mm · humidity 61% · wind 5 m/s · clouds 47%
Wednesday9 September 2026
🌧️19°light rain
sunrise 06:41 · sunset 20:00 · night 15° · evening 16° · rain 2.94 mm · humidity 68% · wind 4 m/s · clouds 100%
Thursday10 September 2026
🌧️18°light rain
sunrise 06:43 · sunset 19:57 · night 14° · evening 17° · rain 1.56 mm · humidity 59% · wind 6 m/s · clouds 95%
Friday11 September 2026
🌧️18°light rain
sunrise 06:45 · sunset 19:54 · night 13° · evening 17° · rain 0.51 mm · humidity 58% · wind 5 m/s · clouds 85%
Saturday12 September 2026
🌧️16°light rain
sunrise 06:47 · sunset 19:52 · night 12° · evening 13° · rain 3.87 mm · humidity 77% · wind 4 m/s · clouds 94%
Sunday13 September 2026
🌧️13°light rain
sunrise 06:49 · sunset 19:49 · night 13° · evening 14° · rain 6.39 mm · humidity 95% · wind 4 m/s · clouds 100%
Monday14 September 2026
🌧️13°light rain
sunrise 06:51 · sunset 19:46 · night 11° · evening 13° · rain 4.02 mm · humidity 63% · wind 7 m/s · clouds 68%
Tuesday15 September 2026
☁️15°broken clouds
sunrise 06:53 · sunset 19:43 · night 12° · evening 15° · rain 6.27 mm · humidity 67% · wind 4 m/s · clouds 78%
Wednesday16 September 2026
☁️17°broken clouds
sunrise 06:55 · sunset 19:41 · night 14° · evening 19° · rain 2.22 mm · humidity 61% · wind 4 m/s · clouds 58%
Thursday17 September 2026
🌧️14°moderate rain
sunrise 06:57 · sunset 19:38 · night 14° · evening 16° · rain 6.96 mm · humidity 97% · wind 2 m/s · clouds 100%
Friday18 September 2026
🌧️18°light rain
sunrise 06:59 · sunset 19:35 · night 14° · evening 19° · rain 1.68 mm · humidity 76% · wind 3 m/s · clouds 94%
Saturday19 September 2026
🌧️14°light rain
sunrise 07:01 · sunset 19:32 · night 13° · evening 13° · rain 1.5 mm · humidity 71% · wind 8 m/s · clouds 79%
Sunday20 September 2026
🌧️15°light rain
sunrise 07:03 · sunset 19:30 · night 15° · evening 15° · rain 3.06 mm · humidity 79% · wind 6 m/s · clouds 51%

UV index in Riga - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTRiga03681111+3.6UV MODERATEtoday, daily maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.Unprotected fair skin may burn in about 55 min4Sat5.094Sun6.094Mon7.094Tue8.093Wed9.094Thu10.093Fri11.093Sat12.094Sun13.091Mon14.093Tue15.091Wed16.092Thu17.094Fri18.094Sat19.093Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Riga is 4 (moderate) - unprotected fair skin can burn in about 55 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Pollen in Riga - info for allergy sufferers

PLANT POLLEN · 4-DAY FORECASTRigaHighest pollen today: Ragweed2 grains/m³ · low leveltoday5.09tomorrow6.09Mon7.09Tue8.09Ragweed228-nonelowmoderatehighvery highoff season: alder, birch, grasses, mugwort, olive · values in grains/m³ (daily peak)pogodapodroze.pl · 2026-09-05
Today ragweed pollen is highest in Riga - about 2 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Sea temperature - Riga

Water today
18°C
Week avg
18°C
How's the water?
cold
16-day sea temperature forecast:
5.09 18°C6.09 18°C7.09 18°C8.09 18°C9.09 18°C10.09 18°C11.09 17°C12.09 17°C13.09 17°C
Average sea temperature through the year:
Jan 1°CFeb 1°CMar 2°CApr 6°CMay 12°CJun 18°CJul 21°CAug 21°CSep 19°COct 12°CNov 8°CDec 4°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Riga weather through the year

Riga - annual climate

Warmest, driest months on average: May, June, July, August.

Upcoming public holidays in Latvia: Day of the Proclamation of the Republic of Latvia — 18 November · Christmas Eve — 24 December · Christmas Day — 25 December.

Nearby and related places

SalaspilsJurmalaJelgavaTukumsSiauliaiRezekneLiepājaVentspils

FAQ - Riga weather

What is the weather like in Riga today?
Today it is about 15° during the day and 11° at night, moderate rain.
How far ahead can I check the forecast for Riga?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.