Louhisaari — Water Temperature in July

Water Temperature Range

15°C

minimum

20°C

average

23°C

maximum

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Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2026	2025	2024	2023
JUL 1	-	17°C	14°C	17°C
JUL 2	18°C	19°C	14°C	18°C
JUL 3	19°C	18°C	14°C	18°C
JUL 4	18°C	19°C	14°C	18°C
JUL 5	19°C	19°C	15°C	19°C
JUL 6	18°C	18°C	14°C	19°C
JUL 7	18°C	19°C	14°C	19°C
JUL 8	18°C	20°C	15°C	20°C
JUL 9	17°C	19°C	14°C	19°C
JUL 10	17°C	19°C	14°C	20°C
JUL 11	17°C	20°C	16°C	20°C
JUL 12	19°C	19°C	16°C	19°C
JUL 13	17°C	20°C	16°C	19°C
JUL 14	17°C	20°C	15°C	20°C
JUL 15	18°C	20°C	15°C	20°C
JUL 16	18°C	20°C	16°C	20°C
JUL 17	17°C	19°C	16°C	21°C
JUL 18	18°C	20°C	16°C	20°C
JUL 19	18°C	20°C	19°C	19°C
JUL 20	19°C	21°C	18°C	20°C
JUL 21	19°C	21°C	19°C	19°C
JUL 22	19°C	21°C	19°C	19°C
JUL 23	18°C	20°C	19°C	19°C
JUL 24	18°C	20°C	18°C	19°C
JUL 25	18°C	20°C	20°C	19°C
JUL 26	18°C	19°C	19°C	19°C
JUL 27	18°C	20°C	19°C	20°C
JUL 28	18°C	21°C	20°C	20°C
JUL 29	-	20°C	19°C	19°C
JUL 30	-	21°C	19°C	18°C
JUL 31	-	20°C	20°C	18°C

July: Climate and Swimming Opportunities

Average Night Air Temperature

13°C

Average Day Air Temperature

22°C

Precipitation Amount per Month

68 mm

Number of Rainy Days

Daylight per Day

18 hrs

Sunshine per Day

8 hrs

Average Wind Speed

14 km/h

Average Humidity

73%

With such a ratio between the average monthly temperatures of water and air, swimming feels warm and comfortable even if the day isn’t hot. The water can feel warmer than the air, so getting out may feel a bit cool.