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Ostrobothnia (Vaasa)
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Weather in Ostrobothnia for May 2026

Your guide to Ostrobothnia weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Ostrobothnia at the beginning of May is 5.1 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 13.4 °C by the end of May.

    • Rain 🌧️

  • Ostrobothnia experiences moderate rainfall in May, with an average of 8 rainy days and a total precipitation of 86.8 mm.

Average dry days
23
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/3°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Ostrobothnia Weather May

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

Temperatures trend during May in Ostrobothnia

See the weather trend as well as the moving average line

May weather in Ostrobothnia day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Overcast
Overcast
 6° /0° 0 mm 0 cm
2 May Patchy rain possible
Patchy rain possible
 6° /1° 1.8 mm 0 cm
3 May Overcast
Overcast
 6° /0° 0.8 mm 0 cm
4 May Patchy rain possible
Patchy rain possible
 4° /0° 0.3 mm 0 cm
5 May Sunny
Sunny
 4° /-1° 1.9 mm 1.4 cm
6 May Overcast
Overcast
 5° /-1° 0.1 mm 0 cm
7 May Overcast
Overcast
 5° /0° 0 mm 0 cm
8 May Partly cloudy
Partly cloudy
 7° /0° 0 mm 0 cm
9 May Partly cloudy
Partly cloudy
 8° /1° 0.2 mm 0 cm
10 May Sunny
Sunny
 9° /3° 0.2 mm 0 cm
11 May Sunny
Sunny
 10° /2° 0 mm 0 cm
12 May Partly cloudy
Partly cloudy
 11° /3° 0 mm 0 cm
13 May Partly cloudy
Partly cloudy
 12° /6° 1.1 mm 0 cm
14 May Partly cloudy
Partly cloudy
 13° /5° 0 mm 0 cm
15 May Partly cloudy
Partly cloudy
 13° /6° 0 mm 0 cm
16 May Sunny
Sunny
 14° /6° 2.1 mm 0 cm
17 May Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /5° 2.1 mm 0 cm
18 May Patchy rain possible
Patchy rain possible
 11° /5° 0.8 mm 0 cm
19 May Sunny
Sunny
 13° /5° 0 mm 0 cm
20 May Partly cloudy
Partly cloudy
 12° /5° 0 mm 0 cm
21 May Sunny
Sunny
 11° /4° 0 mm 0 cm
22 May Overcast
Overcast
 13° /5° 1.6 mm 0 cm
23 May Patchy rain possible
Patchy rain possible
 14° /7° 3.9 mm 0 cm
24 May Sunny
Sunny
 15° /7° 2.1 mm 0 cm
25 May Heavy rain at times
Heavy rain at times
 12° /6° 2.8 mm 0 cm
26 May Patchy rain possible
Patchy rain possible
 14° /7° 0.8 mm 0 cm
27 May Partly cloudy
Partly cloudy
 14° /7° 0 mm 0 cm
28 May Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /8° 2.8 mm 0 cm
29 May Overcast
Overcast
 13° /7° 0.5 mm 0 cm
30 May Overcast
Overcast
 14° /7° 1.2 mm 0 cm
31 May Overcast
Overcast
 13° /8° 1.8 mm 0 cm
Next
Important Notice
Our weather forecast for Ostrobothnia 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 Ostrobothnia forecast closer to your planned date for the most up-to-date weather information.
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Ostrobothnia in May - FAQ

What are the expected maximum and minimum temperatures in Ostrobothnia during May?
Prepare for cooler days with highs just around 13° and colder nights, dipping below 3°.
How much rainfall should be expected in Ostrobothnia during May?
Moderate rainfall is anticipated in Ostrobothnia during May, with a total of 86.8 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
Will it snow in Ostrobothnia in May 2026?
Ostrobothnia typically sees 4.2 cm of snowfall during May.
What are the typical wind conditions in Ostrobothnia during May?
The average wind speed in Ostrobothnia during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

Ostrobothnia snow forecast May 2026

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

May rainfall patterns in Ostrobothnia

Explore the daily rainfall trends and prepare for Ostrobothnias May weather 💧
Typically, Ostrobothnia has 8 rainy days in May with a total of 86.8 mm of rainfall.
Provinces in Ostrobothnia
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Vaasa
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Location coordinates Where is Ostrobothnia?

Get accurate weather forecasts for Ostrobothnia, located at latitude 63.096 and longitude 21.616. Stay updated with localized weather information tailored for Ostrobothnia.

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