easeweather.com
South Ostrobothnia (Lappajärvi)
EnontekiöEspooHelsinkiIvaloKemiKeräläKilpisjärviKittiläKuusamoLappajärviOuluRovaniemiSaariselkaSirkkaTampereTurkuVaasaVantaaÄkäslompolo More Locations
Finland weather

Weather in South Ostrobothnia for May 2026

Your guide to South Ostrobothnia weather in May - trends and predictions

    Snow Forecast ❄️

  • Snowfall in South Ostrobothnia during May is quite rare, with fewer than 2 snowy days on average.
    According to South Ostrobothnia snow forecast for May 2026, no snow is expected in the next 2 weeks.

    • Temperatures

  • The forecast for the upcoming days in South Ostrobothnia predicts a temperature of 15.9 °C, which is slightly above the historical average.

  • In general, the average temperature in South Ostrobothnia at the beginning of May is 10.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.7 °C by the end of May.

    • Rain 🌧️

  • South Ostrobothnia experiences moderate rainfall in May, with an average of 8 rainy days and a total precipitation of 22.4 mm.

Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
1
Snow days
Average temperatures
15°/4°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
62 %
Avg humidity

South Ostrobothnia Weather May

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

Temperatures trend during May in South Ostrobothnia

See the weather trend as well as the moving average line

May weather in South Ostrobothnia day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Overcast
Overcast
 14° /0° 0 mm 0 cm
2 May Overcast
Overcast
 16° /2° 1.5 mm 0 cm
3 May Overcast
Overcast
 10° /2° 2.8 mm 0.1 cm
4 May Overcast
Overcast
 10° /0° 1 mm 0 cm
5 May Partly cloudy
Partly cloudy
 8° /0° 0 mm 0 cm
6 May Patchy rain possible
Patchy rain possible
 8° /0° 0.1 mm 0 cm
7 May Sunny
Sunny
 10° /-2° 0 mm 0 cm
8 May Cloudy
Cloudy
 14° /0° 0 mm 0 cm
9 May Partly cloudy
Partly cloudy
 16° /3° 0 mm 0 cm
10 May Sunny
Sunny
 17° /5° 0 mm 0 cm
11 May Sunny
Sunny
 18° /6° 0 mm 0 cm
12 May Patchy rain possible
Patchy rain possible
 13° /6° 0.1 mm 0 cm
13 May Cloudy
Cloudy
 17° /9° 0.1 mm 0 cm
14 May Patchy rain possible
Patchy rain possible
 16° /8° 1.4 mm 0 cm
15 May Partly cloudy
Partly cloudy
 17° /6° 0 mm 0 cm
16 May Sunny
Sunny
 20° /5° 0 mm 0 cm
17 May Partly cloudy
Partly cloudy
 21° /9° 0 mm 0 cm
18 May Patchy rain possible
Patchy rain possible
 21° /11° 0.2 mm 0 cm
19 May Patchy rain possible
Patchy rain possible
 15° /10° 0.6 mm 0 cm
20 May Overcast
Overcast
 13° /3° 0 mm 0 cm
21 May Partly cloudy
Partly cloudy
 14° /1° 0 mm 0 cm
22 May Partly cloudy
Partly cloudy
 17° /4° 1.9 mm 0 cm
23 May Sunny
Sunny
 18° /6° 3.7 mm 0 cm
24 May Moderate or heavy rain shower
Moderate or heavy rain shower
 18° /7° 3 mm 0 cm
25 May Patchy rain possible
Patchy rain possible
 20° /8° 0.1 mm 0 cm
26 May Overcast
Overcast
 22° /9° 0.2 mm 0 cm
27 May Patchy rain possible
Patchy rain possible
 21° /11° 0.1 mm 0 cm
28 May Cloudy
Cloudy
 21° /11° 0.5 mm 0 cm
29 May Overcast
Overcast
 21° /9° 0.3 mm 0 cm
30 May Patchy rain possible
Patchy rain possible
 22° /9° 2.3 mm 0 cm
31 May Thundery outbreaks possible
Thundery outbreaks possible
 18° /10° 1.4 mm 0 cm
Next
Important Notice
Our weather forecast for South 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 South Ostrobothnia forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

South Ostrobothnia in May - FAQ

What are the expected maximum and minimum temperatures in South Ostrobothnia during May?

Prepare for cooler days with highs just around 15° and colder nights, dipping below 4°.

How much rainfall should be expected in South Ostrobothnia during May?

In May, South Ostrobothnia can expect light to moderate rainfall, totaling 22.4 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in South Ostrobothnia in May 2026?

South Ostrobothnia typically sees 0.215 cm of snowfall during May.

What are the typical wind conditions in South Ostrobothnia during May?

The average wind speed in South Ostrobothnia during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

South Ostrobothnia snow forecast May 2026

Track daily snowfall levels and discover South Ostrobothnia’s snowy potential this May ❄️
On average, South Ostrobothnia sees 1 snowy days during May, with approximately 0.2 cm of total snowfall.

May rainfall patterns in South Ostrobothnia

Explore the daily rainfall trends and prepare for South Ostrobothnias May weather 💧
Typically, South Ostrobothnia has 8 rainy days in May with a total of 22.4 mm of rainfall.

UV exposure in South Ostrobothnia during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Provinces in South Ostrobothnia
Select a province for an accurate weather forecast
Järviseutu
Top locations in South Ostrobothnia
Select a location for an accurate weather forecast
Lappajärvi
More Locations

Quick links

More South Ostrobothnia weather pages
You are here
Location coordinates Where is South Ostrobothnia?

Get accurate weather forecasts for South Ostrobothnia, located at latitude 63.2 and longitude 23.633. Stay updated with localized weather information tailored for South Ostrobothnia.

Found a mistake?
We appreciate your attention to details. Tell us here.