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Weather in Helsinki for May 2025

Your guide to Helsinki weather in May - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Helsinki during May is quite rare, with fewer than 2 snowy days on average.
    According to Helsinki snow forecast for May 2025, 1 snowy day is expected in the next 2 weeks at Sunday, 4 May.

    • Temperatures

  • The forecast for the next days in Helsinki predicts temperatures to be around 8 °C, close to the historical average.

  • In general, the average temperature in Helsinki at the beginning of May is 7.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.4 °C by the end of May.

    • Rain 🌧️

  • Helsinki in May brings notable rainfall, with an average of 17 rainy days and a total precipitation of 58.2 mm.

Average dry days
14
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/6°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Helsinki Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
7°
2
Moderate rain
11°
3
Patchy rain possible
10°
4
Patchy rain possible
5°
5
Partly cloudy
7°
6
Cloudy
7°
7
Patchy rain possible
7°
8
Patchy rain possible
9°
9
Patchy rain possible
9°
10
Patchy rain possible
8°
11
Patchy rain possible
8°
12
Patchy rain possible
10°
13
Sunny
9°
14
Patchy rain possible
8°
15
Sunny
15°
16
Sunny
15°
17
Overcast
14°
18
Moderate or heavy rain shower
15°
19
Sunny
15°
20
Cloudy
15°
21
Moderate or heavy rain shower
14°
22
Overcast
14°
23
Patchy rain possible
16°
24
Sunny
17°
25
Partly cloudy
16°
26
Moderate or heavy rain shower
14°
27
Moderate or heavy rain shower
15°
28
Overcast
15°
29
Sunny
16°
30
Sunny
16°
31
Overcast
16°
Select a date

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Access Helsinki weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Temperatures trend during May in Helsinki

See the weather trend as well as the moving average line

May weather day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Sunny
Sunny
 7° /1° 0 mm 0 cm
2 May Moderate rain
Moderate rain
 11° /4° 6.8 mm 0 cm
3 May Patchy rain possible
Patchy rain possible
 10° /5° 0.7 mm 0 cm
4 May Patchy rain possible
Patchy rain possible
 5° /2° 0.2 mm 0.1 cm
5 May Partly cloudy
Partly cloudy
 7° /0° 0 mm 0 cm
6 May Cloudy
Cloudy
 7° /0° 0 mm 0 cm
7 May Patchy rain possible
Patchy rain possible
 7° /3° 0.4 mm 0 cm
8 May Patchy rain possible
Patchy rain possible
 9° /4° 0.5 mm 0 cm
9 May Patchy rain possible
Patchy rain possible
 9° /6° 3.2 mm 0 cm
10 May Patchy rain possible
Patchy rain possible
 8° /5° 0.5 mm 0 cm
11 May Patchy rain possible
Patchy rain possible
 8° /5° 0.1 mm 0 cm
12 May Patchy rain possible
Patchy rain possible
 10° /5° 0.1 mm 0 cm
13 May Sunny
Sunny
 9° /5° 0.1 mm 0 cm
14 May Patchy rain possible
Patchy rain possible
 8° /5° 0.1 mm 0 cm
15 May Sunny
Sunny
 15° /7° 0.7 mm 0 cm
16 May Sunny
Sunny
 15° /7° 2.1 mm 0 cm
17 May Overcast
Overcast
 14° /6° 2.2 mm 0 cm
18 May Moderate or heavy rain shower
Moderate or heavy rain shower
 15° /6° 2.8 mm 0 cm
19 May Sunny
Sunny
 15° /7° 2.5 mm 0 cm
20 May Cloudy
Cloudy
 15° /7° 1.4 mm 0 cm
21 May Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /6° 4.3 mm 0 cm
22 May Overcast
Overcast
 14° /6° 0.1 mm 0 cm
23 May Patchy rain possible
Patchy rain possible
 16° /7° 0.3 mm 0 cm
24 May Sunny
Sunny
 17° /8° 0 mm 0 cm
25 May Partly cloudy
Partly cloudy
 16° /9° 2.3 mm 0 cm
26 May Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /7° 10.5 mm 0 cm
27 May Moderate or heavy rain shower
Moderate or heavy rain shower
 15° /6° 3.9 mm 0 cm
28 May Overcast
Overcast
 15° /7° 2.2 mm 0 cm
29 May Sunny
Sunny
 16° /7° 0.7 mm 0 cm
30 May Sunny
Sunny
 16° /7° 0.8 mm 0 cm
31 May Overcast
Overcast
 16° /8° 3.6 mm 0 cm
Next
Important Notice
Our weather forecast for Helsinki in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Helsinki forecast closer to your planned date for the most up-to-date weather information.

Helsinki in May - FAQ

What are the expected maximum and minimum temperatures in Helsinki during May?
During May, expect a variety of temperatures with highs around 13° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Helsinki during May?
Moderate rainfall is anticipated in Helsinki during May, with a total of 58.2 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Helsinki during May?
The average wind speed in Helsinki during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Helsinki snow forecast May 2025

Track daily snowfall levels and discover Helsinki’s snowy potential this May ❄️

May rainfall patterns in Helsinki

Explore the daily rainfall trends and prepare for Helsinkis May weather 💧
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Location coordinates Where is Helsinki?

Get accurate weather forecasts for Helsinki, located at latitude 60.17 and longitude 24.935. Stay updated with localized weather information tailored for Helsinki.

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