Tallinn climate

Name: Tallinn
Address: EE

Tallinn is warmest in July, with average highs of 21 °C, and coldest in February, when nights average -6.5 °C. August is the wettest month (78 mm) and March the driest (33 mm). Figures are 1991–2020 climate normals.

Across a full year Tallinn averages 633 mm of rain, 11 days above 25 °C and 125 days below freezing.

Estonia · population 394,024 · 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 21 °C
Coldest month February -6.5 °C
Driest month March 33 mm
Wettest month August 78 mm
Least cloud May 52 % cloud
Hottest on record July 32 °C
Coldest on record February -29 °C
Warmest sea August 17 °C

What to expectTallinn through the year

Tallinn has a clear annual cycle: average daily highs run from -2.0 °C in February to 21 °C in July, a swing of 22 °C in mean temperature across the year.

Counted across a normal year, 11 days a year reach 25 °C, 1 of them reach 30 °C, 125 nights drop below freezing. The warmest reading in the 1991–2020 record is 32 °C, in July.

Rain is strongly seasonal. August averages 78 mm against 33 mm in March — 2.4 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Tallinn is warmest in August at 17 °C and coldest in March at 0.8 °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	-1.5 °C	44 mm	83 %
February	-2.0 °C	36 mm	80 %
March	1.9 °C	33 mm	66 %
April	8.7 °C	37 mm	61 %
May	14.6 °C	42 mm	52 %
June	18.6 °C	69 mm	58 %
July	21.5 °C	71 mm	55 %
August	20.3 °C	78 mm	60 %
September	15.3 °C	59 mm	66 %
October	8.8 °C	64 mm	74 %
November	3.6 °C	52 mm	84 %
December	0.5 °C	48 mm	83 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days below 0 °C
January	-1.5 °C	-5.4 °C	-3.3 °C	8.2 °C	-26.1 °C	0	25
February	-2.0 °C	-6.5 °C	-4.1 °C	6.9 °C	-28.6 °C	0	24
March	1.9 °C	-4.0 °C	-0.9 °C	14.3 °C	-22.5 °C	0	25
April	8.7 °C	0.7 °C	4.8 °C	23.0 °C	-11.4 °C	0	12
May	14.6 °C	5.8 °C	10.6 °C	28.2 °C	-3.0 °C	0	1
June	18.6 °C	10.7 °C	15.0 °C	28.9 °C	2.9 °C	2	0
July	21.5 °C	14.2 °C	18.1 °C	32.3 °C	7.0 °C	5	0
August	20.3 °C	13.6 °C	17.0 °C	31.8 °C	7.4 °C	3	0
September	15.3 °C	9.6 °C	12.5 °C	26.8 °C	-0.9 °C	0	0
October	8.8 °C	4.5 °C	6.7 °C	18.2 °C	-6.1 °C	0	4
November	3.6 °C	0.4 °C	2.1 °C	12.1 °C	-16.1 °C	0	13
December	0.5 °C	-3.0 °C	-1.1 °C	10.2 °C	-21.6 °C	0	21

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	44 mm	11	6.9 h/day	83 %	86 %	24 km/h	2.2 °C
February	36 mm	9	9.2 h/day	80 %	86 %	22 km/h	0.9 °C
March	33 mm	8	12 h/day	66 %	82 %	21 km/h	0.8 °C
April	37 mm	9	15 h/day	61 %	75 %	20 km/h	2.4 °C
May	42 mm	8	17 h/day	52 %	70 %	19 km/h	6.3 °C
June	69 mm	11	19 h/day	58 %	72 %	20 km/h	11.6 °C
July	71 mm	12	18 h/day	55 %	74 %	19 km/h	16.4 °C
August	78 mm	13	16 h/day	60 %	77 %	19 km/h	17.4 °C
September	59 mm	11	13 h/day	66 %	80 %	21 km/h	14.7 °C
October	64 mm	12	10 h/day	74 %	84 %	23 km/h	10.6 °C
November	52 mm	11	7.7 h/day	84 %	87 %	24 km/h	7.2 °C
December	48 mm	11	6.1 h/day	83 %	87 %	25 km/h	4.4 °C

How Tallinn 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
Tallinn	21 °C	-6.5 °C	633 mm	11
Helsinki · Finland	21 °C	-7.3 °C	673 mm	5
Vantaa · Finland	22 °C	-8.0 °C	672 mm	12
Turku · Finland	22 °C	-7.3 °C	669 mm	10
Tampere · Finland	21 °C	-8.4 °C	630 mm	9
Pskov · Russia	22 °C	-8.0 °C	672 mm	15
Riga · Latvia	22 °C	-5.5 °C	696 mm	18

Where Tallinn ranks

Ranking	Position	Value
The coolest places in Europe in May	43rdof 50	15 °C
Best beach destinations in Europe in March	44thof 50	14/100
The coolest places in Europe in April	47thof 50	8.7 °C
Best beach destinations in Europe in February	48thof 50	13/100

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

QuestionsCommon questions about Tallinn’s climate

When is the best time to visit Tallinn?

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 Tallinn get?

In July, the warmest month, daily highs average 21 °C. About 1 days a year pass 30 °C. The highest value in the 1991–2020 record is 32 °C.

How cold does it get in winter?

Nights average -6.5 °C in February, the coldest month. A normal year has 125 nights below freezing.

Which month is wettest in Tallinn?

August, averaging 78 mm over 13 days with rain. The driest month is March with 33 mm. The year as a whole averages 633 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 Tallinn 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.