Weather in Finland for May 2025
In general, the average temperature in Finland at the beginning of May is 8.1 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.4 °C by the end of May.
Finland in May brings notable rainfall, with an average of 17 rainy days and a total precipitation of 58.2 mm.
Temperatures
Rain 🌧️
Finland Weather May
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  9° | 2  8° | 3  8° | 4 9° | |||
| 5  7° | 6  8° | 7 8° | 8 9° | 9 10° | 10 12° | 11  15° |
| 12 15° | 13  15° | 14 16° | 15 15° | 16 15° | 17 14° | 18 15° |
| 19 15° | 20 15° | 21 14° | 22 14° | 23 16° | 24 17° | 25 16° |
| 26 14° | 27 15° | 28 15° | 29 16° | 30 16° | 31 16° |
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Temperatures trend during May in Finland
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 9° /5° | 0.8 mm | 2 | |
| 2 May | Overcast | 8° /2° | 4.9 mm | 3 | |
| 3 May | Partly cloudy | 8° /2° | 0.4 mm | 2 | |
| 4 May | Patchy rain possible | 9° /2° | 0.6 mm | 2 | |
| 5 May | Heavy rain at times | 7° /1° | 1.9 mm | 2 | |
| 6 May | Moderate or heavy rain shower | 8° /1° | 3 mm | 3 | |
| 7 May | Heavy rain at times | 8° /1° | 1.3 mm | 2 | |
| 8 May | Moderate rain at times | 9° /1° | 0.8 mm | 3 | |
| 9 May | Patchy rain possible | 10° /1° | 0.4 mm | 3 | |
| 10 May | Overcast | 12° /4° | 2.2 mm | 3 | |
| 11 May | Sunny | 15° /6° | 1.4 mm | 4 | |
| 12 May | Partly cloudy | 15° /6° | 0.3 mm | 4 | |
| 13 May | Cloudy | 15° /6° | 0.3 mm | 4 | |
| 14 May | Patchy rain possible | 16° /7° | 0 mm | 4 | |
| 15 May | Sunny | 15° /7° | 0.7 mm | 4 | |
| 16 May | Sunny | 15° /7° | 2.1 mm | 4 | |
| 17 May | Overcast | 14° /6° | 2.2 mm | 4 | |
| 18 May | Moderate or heavy rain shower | 15° /6° | 2.8 mm | 4 | |
| 19 May | Sunny | 15° /7° | 2.5 mm | 4 | |
| 20 May | Cloudy | 15° /7° | 1.4 mm | 4 | |
| 21 May | Moderate or heavy rain shower | 14° /6° | 4.3 mm | 4 | |
| 22 May | Overcast | 14° /6° | 0.1 mm | 4 | |
| 23 May | Patchy rain possible | 16° /7° | 0.3 mm | 4 | |
| 24 May | Sunny | 17° /8° | 0 mm | 5 | |
| 25 May | Partly cloudy | 16° /9° | 2.3 mm | 4 | |
| 26 May | Moderate or heavy rain shower | 14° /7° | 10.5 mm | 3 | |
| 27 May | Moderate or heavy rain shower | 15° /6° | 3.9 mm | 4 | |
| 28 May | Overcast | 15° /7° | 2.2 mm | 4 | |
| 29 May | Sunny | 16° /7° | 0.7 mm | 4 | |
| 30 May | Sunny | 16° /7° | 0.8 mm | 4 | |
| 31 May | Overcast | 16° /8° | 3.6 mm | 4 | |
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Guide for Finland in May
In May, Finland experiences a transition from spring to early summer, bringing about noticeable changes in the weather. At the beginning of the month, southern Finland typically enjoys milder temperatures with occasional showers.
The average daytime temperatures range from 10° to 15°, while the nights can still be quite chilly, dropping to around 2° to 7°. As the month progresses, the weather gradually becomes warmer and more stable.
By the end of May, the southern regions of Finland experience longer daylight hours and milder weather. Daytime temperatures can reach an average of 15° to 20°, creating pleasant conditions for outdoor activities.
The nights also become significantly milder, with temperatures ranging from 5° to 10°. In the northern parts of the country, the weather may still be cooler compared to the south, with average daytime temperatures ranging from 5° to 12° and nighttime temperatures dropping to around 0° to 5°.
Overall, May in Finland offers a transition from spring to early summer, with increasing temperatures and longer daylight hours as the month progresses.
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Finland in May - FAQ
May rainfall patterns in Finland
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