Finland
Turku in May: weather, sea & travel advice
This month's data profile
Strong month under the current formula
Turku in May is climatically well suited to city breaks and active holidays and hiking. The average daily high is around 14 °C, and the sea is about 6 °C. With about 9 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
48/100 · #4
Warmth
#5
Dryness
#1
Sun
#2
Sea warmth
#7
Published best categories: City break, Active
Turku · MayPhoto: Kotivalo · CC0Climate facts
- Average high
- 14 °C
- Average low
- 4 °C
- Sea
- 6 °C
- Rainy days (est.)
- 9 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 77 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| April | 8 | -1 | 10 | 47 | 4.7 | 83 | 0.7 | 2 | 34 |
| May (selected) | 14 | 4 | 9 | 45 | 6.6 | 77 | 0.5 | 6 | 48 |
| June | 18 | 9 | 11 | 66 | 7.0 | 77 | 0.5 | 12 | 56 |
How do the previous and next months compare?
Baseline: May (48/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| April | -14 | -6.2 °C | -4.6 °C | +0.8 | +2.3 mm | -1.9 h | +5.8 % | +0.2 m/s | -3.9 °C |
| June | +8 | +4.2 °C | +5 °C | +2 | +21.3 mm | +0.4 h | +0.1 % | ±0 m/s | +5.4 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Turku in May?
The average daily high is around 14 °C, with an average daily low of about 4 °C.
Can you swim in Turku in May?
The sea is about 6 °C (cold).
Does it rain a lot in Turku in May?
The curated estimate is about 9 rainy days per month, not a directly measured long-term average. Total precipitation averages around 45 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Turku?
By the climate score, July and August are the strongest months for Turku. May is not among them.