Weather in Turku in May 2025
- May is usually the driest month of the year in Turku
Average weather
Average temperature in Turku in May
The expected average maximum temperature in May is +15°C with a maximum of +23°C and a minimum of -3°C.
The average maximum temperature goes up 23% by the end of the month, compared with the beginning of the month, from +10°C to +16°C.
Is Turku warm or cold in May?
Turku is typically mild in May.
Maximum temperatures go up compared to the previous month from +8°C to +14°C. The minimum temperature also goes up from 0°C to +5°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Turku:
Water temperature in Turku in May
Water in Turku in May is Cold. It varies from -1°C to +9°C, with an average of +4°C. The air temperature averaging +14°C is higher than the water temperature.
In May, water temperatures are average relative to the rest of the year:
Can you swim in Turku in May?
Climate in Turku in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +8°C | +14°C | +19°C | ||||
| Min. temperature | ||||||
| -11°C | -5°C | 0°C | ||||
| Max. temperature | ||||||
| +22°C | +28°C | +31°C | ||||
| Rainfall | ||||||
| 24 mm | 36 mm | 48 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +1°C | +4°C | +10°C | ||||
| Humidity | ||||||
| 72% | 67% | 69% | ||||
| Air pressure | ||||||
| 1012 HPa | 1013 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 9 | 12 | 10 | ||||
| Cloudy days | ||||||
| 8 | 7 | 6 | ||||
| Rainy days | ||||||
| 9 | 12 | 13 | ||||
| Snowy days | ||||||
| 4 | 0 | 0 | ||||
May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +8°C to +14°C during the day. Prepare for more rain. Average rainfall goes from 24 mm to 36 mm. It feels drier, as humidity decreases from 72% to 67%. The average wind speed doesn’t change much during May, staying around 3 m/s. The good news is there are likely to be more sunny days in May, from 9 to 12.
June brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Turku is gradually increasing during May, going from 3 m/s to 4 m/s over the course of the month.
Rain
How was the weather last May in Turku?
Climate Change over Years
The climate in Turku in May has not changed much over the last 43 years.
The average temperature was the lowest in 1987 (+6°C) and the highest in 2020 (+11°C). The driest year was 2003 with only 300 mm of rainfall, and the wettest year was 2020 with 615 mm.
FAQ
Is May a good time to visit Turku?
Can you sunbathe in Turku in May?
Can you swim in Turku in May?
Is Turku rainy in May?
Is it sunny in Turku in May?
Other cities in Finland
Monthly weather in Turku
Source of the data
For this page, we’ve looked at the typical weather in Turku, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.