Weather in Helsinki in July 2025
- July is usually the hottest month of the year in Helsinki;
Average weather
Average temperature in Helsinki in July
The temperature in July is +20°C on average, with a range between a maximum of +24°C during the day and a minimum of +9°C at night.
The average maximum temperature goes down 7% by the end of the month, compared with the beginning of the month, from +20°C to +19°C.
Is Helsinki warm or cold in July?
Helsinki is typically mild in July.
Maximum temperatures go up compared to the previous month from +16°C to +20°C. The minimum temperature also goes up from +10°C to +14°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
July is the hottest month in Helsinki, here is the comparison with other months:
Water temperature in Helsinki in July
Water in Helsinki in July is Cold. It varies from +2°C to +23°C, with an average of +12°C. The air temperature averaging +20°C is higher than the water temperature.
The water temperature in July is one of the warmest of the entire year:
Can you swim in Helsinki in July?
Climate in Helsinki in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +16°C | +20°C | +19°C | ||||
| Min. temperature | ||||||
| +2°C | +7°C | +3°C | ||||
| Max. temperature | ||||||
| +31°C | +32°C | +29°C | ||||
| Rainfall | ||||||
| 58 mm | 69 mm | 83 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +9°C | +12°C | +13°C | ||||
| Humidity | ||||||
| 72% | 72% | 76% | ||||
| Air pressure | ||||||
| 1011 HPa | 1010 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 10 | 10 | 8 | ||||
| Cloudy days | ||||||
| 7 | 5 | 5 | ||||
| Rainy days | ||||||
| 12 | 12 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as good as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +16°C to +20°C during the day. Prepare for more rain. Average rainfall goes from 58 mm to 69 mm. Humidity levels don’t change as the month goes on, averaging around 72%. The average wind speed doesn’t change much during July, staying around 3 m/s. The amount of sunny days stay about the same, averaging 10 sunny days during the month.
Next month (August) brings a further decline in the weather.
Wind
The average wind speed is 4 m/s getting up to 10 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Helsinki is gradually decreasing during July, going from 5 m/s to 2 m/s over the course of the month.
Rain
How was the weather last July in Helsinki?
Climate Change over Years
The climate in Helsinki in July has not changed much over the last 43 years.
The average temperature was the lowest in 1987 (+5°C) and the highest in 2020 (+11°C). The driest year was 2002 with only 248 mm of rainfall, and the wettest year was 2020 with 1153 mm.
FAQ
Is July a good time to visit Helsinki?
Can you sunbathe in Helsinki in July?
Can you swim in Helsinki in July?
Is Helsinki rainy in July?
Is it sunny in Helsinki in July?
Other cities in Finland
Monthly weather in Helsinki
Source of the data
For this page, we’ve looked at the typical weather in Helsinki, 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.