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Finland weather

Weather in Southwest Finland for May 2026

Your guide to Southwest Finland weather in May - trends and predictions

    Official Weather Alert ⚠️

  • Forest Fire Warning - See hour by hour.

    • Temperatures

  • So far, May 2026 in Southwest Finland is slightly warmer than the historical average by 1.6 °C.

  • The forecast for the upcoming days in Southwest Finland predicts a temperature of 12.8 °C, which is slightly above the historical average.

  • In general, the average temperature in Southwest Finland at the beginning of May is 9.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.9 °C by the end of May.

    • Rain 🌧️

  • Southwest Finland experiences moderate rainfall in May, with an average of 9 rainy days and a total precipitation of 26.1 mm.

Average dry days
22
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/5°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
65 %
Avg humidity

Southwest Finland Weather May

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

Temperatures trend during May in Southwest Finland

See the weather trend as well as the moving average line

May weather in Southwest Finland day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Patchy rain possible
Patchy rain possible
 11° /2° 0.5 mm 3
2 May Moderate rain at times
Moderate rain at times
 11° /4° 4.8 mm 3
3 May Patchy rain possible
Patchy rain possible
 11° /3° 0.6 mm 3
4 May Patchy rain possible
Patchy rain possible
 8° /2° 1.2 mm 2
5 May Overcast
Overcast
 8° /1° 0.5 mm 3
6 May Overcast
Overcast
 8° /0° 0.9 mm 3
7 May Overcast
Overcast
 9° /0° 0 mm 3
8 May Overcast
Overcast
 10° /0° 0 mm 3
9 May Partly cloudy
Partly cloudy
 10° /1° 0.1 mm 3
10 May Sunny
Sunny
 12° /4° 0 mm 3.6
11 May Moderate rain
Moderate rain
 8° /5° 7.9 mm 2.5
12 May Moderate rain
Moderate rain
 9° /5° 19.7 mm 3.3
13 May Sunny
Sunny
 11° /3° 0 mm 3
14 May Patchy rain possible
Patchy rain possible
 10° /5° 1.2 mm 2
15 May Patchy rain possible
Patchy rain possible
 9° /6° 0.1 mm 2
16 May Sunny
Sunny
 12° /5° 0 mm 3
17 May Cloudy
Cloudy
 13° /8° 0 mm 3
18 May Patchy rain possible
Patchy rain possible
 18° /7° 0.4 mm 3
19 May Patchy rain possible
Patchy rain possible
 13° /10° 1.8 mm 3
20 May Partly cloudy
Partly cloudy
 15° /10° 0 mm 4
21 May Sunny
Sunny
 17° /9° 0 mm 4
22 May Sunny
Sunny
 17° /8° 0 mm 4
23 May Sunny
Sunny
 15° /9° 0 mm 4
24 May Partly cloudy
Partly cloudy
 17° /7° 0 mm 5
25 May Patchy rain possible
Patchy rain possible
 16° /8° 0.2 mm 4
26 May Patchy rain possible
Patchy rain possible
 16° /9° 1.3 mm 4
27 May Sunny
Sunny
 15° /8° 0 mm 4
28 May Moderate rain at times
Moderate rain at times
 15° /9° 2.6 mm 4
29 May Partly cloudy
Partly cloudy
 16° /8° 1.7 mm 4
30 May Cloudy
Cloudy
 16° /7° 3.3 mm 4
31 May Overcast
Overcast
 17° /9° 0.8 mm 4
Next
Important Notice
Our weather forecast for Southwest Finland 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 Southwest Finland forecast closer to your planned date for the most up-to-date weather information.
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Southwest Finland in May - FAQ

What are the expected maximum and minimum temperatures in Southwest Finland during May?

During May, expect a variety of temperatures with highs around 13° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in Southwest Finland during May?

In May, Southwest Finland can expect light to moderate rainfall, totaling 26.1 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Southwest Finland in May 2026?

Southwest Finland typically sees 0.05 cm of snowfall during May.

What are the typical wind conditions in Southwest Finland during May?

The average wind speed in Southwest Finland during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Southwest Finland

Explore the daily rainfall trends and prepare for Southwest Finlands May weather 💧
Typically, Southwest Finland has 9 rainy days in May with a total of 26.1 mm of rainfall.
Provinces in Southwest Finland
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Turku
Top locations in Southwest Finland
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Turku
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Location coordinates Where is Southwest Finland?

Get accurate weather forecasts for Southwest Finland, located at latitude 60.451 and longitude 22.269. Stay updated with localized weather information tailored for Southwest Finland.

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