Helsinki weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Excellent
Best time to visit: June – August
What is the weather like in Helsinki in July?
In July, Helsinki is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 16.6 °C – swimming is only for the hardy. With around 10 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 13 rainy days and 85 mm in total. All in all, July is an excellent month for a holiday in Helsinki.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 18 h 11 min04:20 – 22:32
- UV index
- 5 · moderateclear sky, noon (estimate)
- Muggy days
- 2 daysdew point 18 °C or more
- Wind
- 17 km/haverage daily peak
- Cloud cover
- 58 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+3Europe/Helsinki
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %36 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Helsinki in July: quick answers
Is Helsinki hot in July?
Warm rather than hot: in July, daytime highs in Helsinki average 21 °C and nights cool to about 15 °C.
Can you swim in Helsinki in July?
Only if you don't mind cold water: in July the sea averages just 16.6 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Helsinki in July?
Rain is frequent, with about 13 rainy days and 85 mm in total.
Helsinki month by month
The whole year in HelsinkiAll destinations: Finland
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)