Monthly Climate
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Best time to visit Vantaa

July is the best time to visit Vantaa for general sightseeing, with average highs of 22 °C and about 12 wet days. The comfortable season runs roughly June to August.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking July comfort 87/100
A beach holiday July sea 16 °C
The least cloud May 55 % average cloud cover
The least rain April 37 mm
Warmth July 22 °C
Cooler weather February -2.8 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 July 87 22 °C 12 42
2 August 83 20 °C 12 39
3 June 81 19 °C 11 24
4 May 66 15 °C 9 15
5 September 65 15 °C 10 15
6 April 38 8.0 °C 9 14
7 October 35 8.1 °C 11 8
8 March 27 1.2 °C 8 14
9 February 25 -2.8 °C 9 12
10 November 22 3.0 °C 12 7
11 January 21 -2.3 °C 11 9
12 December 19 -0.2 °C 12 6

For a beach holiday

July scores highest, with a sea temperature of 16 °C and air temperatures around 22 °C. The sea never reaches 20 °C here.

Month Sea Air Sunshine Beach score
January 2.0 °C -2.3 °C 83 % 9
February 0.7 °C -2.8 °C 79 % 12
March 0.7 °C 1.2 °C 67 % 14
April 2.2 °C 8.0 °C 64 % 14
May 6.2 °C 15 °C 55 % 15
June 11 °C 19 °C 60 % 24
July 16 °C 22 °C 57 % 42
August 17 °C 20 °C 62 % 39
September 14 °C 15 °C 66 % 15
October 10 °C 8.1 °C 74 % 8
November 7.0 °C 3.0 °C 83 % 7
December 4.2 °C -0.2 °C 83 % 6

When to think twice

December scores lowest with about 12 wet days and highs near -0.2 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January -2.3 °C 50 mm 83 %
February -2.8 °C 42 mm 79 %
March 1.2 °C 37 mm 67 %
April 8.0 °C 37 mm 64 %
May 14.7 °C 44 mm 55 %
June 18.9 °C 72 mm 60 %
July 21.8 °C 75 mm 57 %
August 20.3 °C 76 mm 62 %
September 14.9 °C 57 mm 66 %
October 8.1 °C 62 mm 74 %
November 3.0 °C 62 mm 83 %
December -0.2 °C 57 mm 83 %

Data sources and method

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

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. 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.