Vantaa, Finland — Weather in May 2027

Monthly climate averages for Vantaa, Finland. Based on 10-year ERA5 reanalysis data.

Dfb Warm-Summer Continental
6.5 /10
Good

May is a good month in Vantaa

Climate Overview

Vantaa, Finland in May has mild conditions, with highs averaging 15.6°C (60°F) and noticeably cooler mornings. Sea temperature stays cool at 10.1°C (50°F).

This month falls at the end of Spring.

Daily highs in May gradually rise from around 12°C (53°F) at the start to 18°C (65°F) by month's end.

May sees fairly even rainfall, totalling about 43 mm across the month.

Expect around 12.2h of sunshine at the start of May, increasing to 13.8h by the end.

The warmest days tend to fall around the 31th, averaging 18.7°C (66°F).

Compared to April, this month is about 7°C warmer with 1 fewer rainy days. Temperatures will rise further into June.

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Monthly May Averages

Temperature
16°C / 6°C
Feels Like
13°C / 3°C
Rain
8 days · 44 mm
Sunshine
13.1h / day
Humidity
66% — Humid
Wind
17 km/h
Wind Direction
WSW (248°)
Gusts
35 km/h
Daylight
17.3 h
Cloud Cover
52%
Clear Sky Days
5.6
UV Index
5.2 — High
Sea Temperature
10°C
Dew Point
5°C — Dry
Moon Phase
Waxing Gibbous · 66%
Frost Days
2 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

24°C 20°C 16°C 12°C 8°C 4°C 0°C -4°C 151015202531
HighLow

Daily Precipitation

0 mm 1 mm 2 mm 3 mm 4 mm 151015202531
Rainfall

Daily Sunshine

0h 4h 8h 12h 16h 151015202531
Sunshine

Daily Wind Speed

0 5 10 15 20 25 151015202531
Wind Speed
Sun Position
Sunrise 04:42
Daylight 17.2h
Sunset 21:53

Compare Months

January
Poor
Temp
-2°C / -6°C
Feels Like
-7°C / -11°C
Rain
13days (62 mm) Wet
Sun
1.2h Poor
Humidity
89% Very Muggy
UV
0.4 Low
Snow Days
17days
View Details
February
Poor
Temp
-1°C / -6°C
Feels Like
-6°C / -11°C
Rain
10days (52 mm) Wet
Sun
3.5h Poor
Humidity
87% Very Muggy
UV
1.1 Low
Snow Days
13days
View Details
March
Poor
Temp
2°C / -4°C
Feels Like
-2°C / -9°C
Rain
9days (38 mm) Wet
Sun
6.8h Fair
Humidity
83% Humid
UV
2.3 Moderate
Snow Days
11days
View Details
April
Poor
Temp
8°C / 0°C
Feels Like
4°C / -4°C
Rain
9days (45 mm) Wet
Sun
10.2h Excellent
Humidity
74% Muggy
UV
3.4 Moderate
Snow Days
5days
View Details
May best
Good
Temp
16°C / 6°C
Feels Like
13°C / 3°C
Rain
8days (44 mm) Wet
Sun
13.1h Excellent
Humidity
66% Muggy
UV
5.2 High
View Details
June best
Good
Temp
21°C / 12°C
Feels Like
19°C / 10°C
Rain
10days (64 mm) Wet
Sun
14.2h Excellent
Humidity
66% Muggy
UV
5.5 High
View Details
July best
Excellent
Temp
22°C / 14°C
Feels Like
21°C / 14°C
Rain
13days (89 mm) Wet
Sun
13.3h Excellent
Humidity
74% Muggy
UV
5.2 High
View Details
August best
Excellent
Temp
20°C / 14°C
Feels Like
19°C / 13°C
Rain
14days (86 mm) Wet
Sun
11h Excellent
Humidity
79% Humid
UV
4.3 Moderate
View Details
September best
Good
Temp
16°C / 10°C
Feels Like
14°C / 8°C
Rain
11days (68 mm) Wet
Sun
7.9h Good
Humidity
83% Humid
UV
3.1 Moderate
View Details
October
Poor
Temp
9°C / 5°C
Feels Like
6°C / 1°C
Rain
13days (67 mm) Wet
Sun
4.2h Fair
Humidity
87% Very Muggy
UV
1.4 Low
Snow Days
1days
View Details
November
Poor
Temp
4°C / 1°C
Feels Like
0°C / -4°C
Rain
13days (59 mm) Wet
Sun
1.6h Poor
Humidity
90% Very Muggy
UV
0.5 Low
Snow Days
7days
View Details
December
Poor
Temp
0°C / -3°C
Feels Like
-4°C / -8°C
Rain
13days (59 mm) Wet
Sun
0.8h Poor
Humidity
90% Very Muggy
UV
0.3 Low
Snow Days
14days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January -2°C / -6°C -7°C / -11°C 13days (62 mm) Wet 1.2h Poor 89% Very Muggy 0.4 Low Poor View Details
February -1°C / -6°C -6°C / -11°C 10days (52 mm) Wet 3.5h Poor 87% Very Muggy 1.1 Low Poor View Details
March 2°C / -4°C -2°C / -9°C 9days (38 mm) Wet 6.8h Fair 83% Humid 2.3 Moderate Poor View Details
April 8°C / 0°C 4°C / -4°C 9days (45 mm) Wet 10.2h Excellent 74% Muggy 3.4 Moderate Poor View Details
May best 16°C / 6°C 13°C / 3°C 8days (44 mm) Wet 13.1h Excellent 66% Muggy 5.2 High Good View Details
June best 21°C / 12°C 19°C / 10°C 10days (64 mm) Wet 14.2h Excellent 66% Muggy 5.5 High Good View Details
July best 22°C / 14°C 21°C / 14°C 13days (89 mm) Wet 13.3h Excellent 74% Muggy 5.2 High Excellent View Details
August best 20°C / 14°C 19°C / 13°C 14days (86 mm) Wet 11h Excellent 79% Humid 4.3 Moderate Excellent View Details
September best 16°C / 10°C 14°C / 8°C 11days (68 mm) Wet 7.9h Good 83% Humid 3.1 Moderate Good View Details
October 9°C / 5°C 6°C / 1°C 13days (67 mm) Wet 4.2h Fair 87% Very Muggy 1.4 Low Poor View Details
November 4°C / 1°C 0°C / -4°C 13days (59 mm) Wet 1.6h Poor 90% Very Muggy 0.5 Low Poor View Details
December 0°C / -3°C -4°C / -8°C 13days (59 mm) Wet 0.8h Poor 90% Very Muggy 0.3 Low Poor View Details

What to Wear

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility between indoors and outdoors.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Layered clothingLight jacketUmbrellaComfortable walking shoes

Frequently Asked Questions

May is typically good for visiting Vantaa, with average highs of 16°C (60°F) and around 8 rainy days. Vantaa, Finland in May has mild conditions, with highs averaging 15.6°C (60°F) and noticeably cooler mornings. Sea tempe
Vantaa typically sees around 8 rainy days in May with 44 mm (1.7 in) of total rainfall. An umbrella should suffice.
Nights in Vantaa during May are cool at around 6°C (43°F). Bring a jacket or sweater for evenings.
With highs of 16°C (60°F) and lows of 6°C (43°F) in May, we recommend: Layered clothing, Light jacket, Umbrella, Comfortable walking shoes. Comfortable walking shoes are essential.
Yes, May offers some of the best weather conditions in Vantaa with comfortable temperatures and lower chances of rain.
The average UV index in Vantaa during May is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.
Vantaa gets approximately 17 hours of daylight per day in May, with around 13 hours of sunshine.
Snow is uncommon in Vantaa during May based on 10-year climate averages.

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