Riga climate

Name: Riga
Address: LV

Riga is warmest in July, with average highs of 22 °C, and coldest in February, when nights average -5.5 °C. August is the wettest month (80 mm) and March the driest (39 mm). Figures are 1991–2020 climate normals.

Across a full year Riga averages 696 mm of rain, 18 days above 25 °C and 112 days below freezing.

Latvia · population 742,572 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month July 22 °C
Coldest month February -5.5 °C
Driest month March 39 mm
Wettest month August 80 mm
Least cloud May 54 % cloud
Hottest on record July 34 °C
Coldest on record February -29 °C
Warmest sea August 19 °C

What to expectRiga through the year

Riga has a clear annual cycle: average daily highs run from -0.4 °C in February to 22 °C in July, a swing of 22 °C in mean temperature across the year.

Counted across a normal year, 18 days a year reach 25 °C, 1 of them reach 30 °C, 112 nights drop below freezing. The warmest reading in the 1991–2020 record is 34 °C, in July.

Rain is strongly seasonal. August averages 80 mm against 39 mm in March — 2.1 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Riga is warmest in August at 19 °C and coldest in February at 0.9 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	-0.8 °C	46 mm	82 %
February	-0.4 °C	39 mm	80 %
March	3.9 °C	39 mm	68 %
April	10.8 °C	42 mm	59 %
May	16.4 °C	52 mm	54 %
June	20.0 °C	73 mm	57 %
July	22.4 °C	71 mm	55 %
August	21.6 °C	80 mm	58 %
September	16.6 °C	68 mm	64 %
October	10.0 °C	80 mm	72 %
November	4.4 °C	58 mm	83 %
December	0.8 °C	49 mm	83 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	-0.8 °C	-5.0 °C	-2.7 °C	10.0 °C	-28.4 °C	0	0	24
February	-0.4 °C	-5.5 °C	-2.8 °C	11.6 °C	-28.8 °C	0	0	23
March	3.9 °C	-2.9 °C	0.5 °C	16.7 °C	-22.4 °C	0	0	22
April	10.8 °C	2.0 °C	6.5 °C	25.6 °C	-13.1 °C	0	0	8
May	16.4 °C	7.5 °C	12.3 °C	28.9 °C	-3.6 °C	2	0	0
June	20.0 °C	11.9 °C	16.2 °C	32.8 °C	3.1 °C	3	0	0
July	22.4 °C	14.7 °C	18.8 °C	33.8 °C	7.6 °C	7	1	0
August	21.6 °C	14.1 °C	18.0 °C	32.2 °C	7.4 °C	5	0	0
September	16.6 °C	10.2 °C	13.3 °C	28.5 °C	-1.3 °C	0	0	0
October	10.0 °C	5.1 °C	7.5 °C	20.7 °C	-7.6 °C	0	0	3
November	4.4 °C	0.9 °C	2.7 °C	13.5 °C	-19.0 °C	0	0	11
December	0.8 °C	-2.6 °C	-0.8 °C	11.2 °C	-22.4 °C	0	0	20

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	46 mm	11	7.4 h/day	82 %	85 %	24 km/h	2.3 °C
February	39 mm	10	9.5 h/day	80 %	84 %	23 km/h	0.9 °C
March	39 mm	10	12 h/day	68 %	79 %	22 km/h	1.0 °C
April	42 mm	9	14 h/day	59 %	74 %	21 km/h	3.4 °C
May	52 mm	10	16 h/day	54 %	70 %	20 km/h	8.6 °C
June	73 mm	11	18 h/day	57 %	71 %	20 km/h	13.8 °C
July	71 mm	12	17 h/day	55 %	74 %	19 km/h	17.9 °C
August	80 mm	13	15 h/day	58 %	75 %	19 km/h	18.7 °C
September	68 mm	11	13 h/day	64 %	78 %	21 km/h	15.6 °C
October	80 mm	14	10 h/day	72 %	83 %	23 km/h	11.3 °C
November	58 mm	13	8.1 h/day	83 %	86 %	23 km/h	7.6 °C
December	49 mm	12	6.8 h/day	83 %	86 %	25 km/h	4.8 °C

How Riga compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Riga	22 °C	-5.5 °C	696 mm	18
Klaipėda · Lithuania	21 °C	-3.0 °C	727 mm	12
Kaunas · Lithuania	23 °C	-5.4 °C	660 mm	22
Vilnius · Lithuania	23 °C	-5.9 °C	692 mm	20
Pskov · Russia	22 °C	-8.0 °C	672 mm	15
Tallinn · Estonia	21 °C	-6.5 °C	633 mm	11
Kaliningrad · Russia	23 °C	-3.6 °C	696 mm	23

Planning a trip? See the best time to visit Riga.

QuestionsCommon questions about Riga’s climate

When is the best time to visit Riga?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, August sit closest to 20 °C on average, July is the warmest month and March the driest. The month-by-month table above has the full picture.

How hot does Riga get?

In July, the warmest month, daily highs average 22 °C. About 1 days a year pass 30 °C. The highest value in the 1991–2020 record is 34 °C.

How cold does it get in winter?

Nights average -5.5 °C in February, the coldest month. A normal year has 112 nights below freezing.

Which month is wettest in Riga?

August, averaging 80 mm over 13 days with rain. The driest month is March with 39 mm. The year as a whole averages 696 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Riga rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.