Lahti Weather in July
What's the weather like in Lahti (Southern Finland Province) in July 2025?
The climate in Lahti during July can be summarized as mild and reasonably dry.
July is in the summer in Lahti and is typically the warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 11°C (51°F) is normal.
| Daytime temperature | 21.5°C 70.7°F |
|---|---|
| Nightly temperature | 10.7°C 51.3°F |
| Average temperature | 16.1°C 61°F |
| Daily sunshine | 4.2 hrs |
| Avg rainfall | 77 mm 3 ins |
| Rainy days | 15 days |
| Sea temperature | 15.8°C 60.5°F |
| Humidity | 73% |
| Windspeed | 10.4kph 7 mph |
On average July is the 2nd wettest month of the year in Lahti with around 77mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.2 hours of sunshine per day.
July temperatures in Lahti
July rainfall
July hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Lahti in July 2025.
Other monthly averages
Lahti weather stats
| Hottest month: | July | 21.2°C 70.2°F |
|---|---|---|
| Driest month: | February | 31mm 1.2ins |
| Sunniest month: | June | 5hrs |
| Coldest month: | January | -5.5°C 22.1°F |
| Wettest month: | August | 86mm 3.4ins |
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