Weather in January
In January, the average sea temperature in Slite, Sweden, is 2.9°C (37.2°F). Note: Under swimming conditions, this represents an immediate threat to life. Weather in January »
Weather in February
In Slite, Sweden, the average seawater temperature in February is 2.1°C (35.8°F). Note: While swimming, this scenario rapidly escalates into a life-threatening situation. Weather in February »
Weather in March
March is the month with the coldest seawater in Slite, Sweden, with an average sea temperature of 1.8°C (35.2°F). Note: In swimming engagements, this poses immediate life-threatening risks. Weather in March »
Weather in April
In April, the average sea temperature in Slite, Sweden, is 3.5°C (38.3°F). Note: In terms of swimming, this condition is dangerously life-threatening. Weather in April »
Weather in May
In May, the average sea temperature in Slite, Sweden, is 7.7°C (45.9°F). Note: Swimming in 7.7°C (45.9°F) at temperatures under 10°C (50°F) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Weather in May »
Weather in June
In Slite, Sweden, in June, the average water temperature is 14.2°C (57.6°F). Note: Dipping into 14.2°C (57.6°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Weather in June »
Weather in July
In Slite, Sweden, in July, the average water temperature is 18.2°C (64.8°F). Note: Swimming is not a pleasant activity for most when the water temperature is 18.2°C (64.8°F). Weather in July »
Weather in August
With an average sea temperature of 18.8°C (65.8°F), August is the month with the warmest seawater in Slite, Sweden. Note: For the majority, swimming in water with a temperature of 18.8°C (65.8°F) is not enjoyable. Weather in August »
Weather in September
In September, the average sea temperature in Slite, Sweden, is 15.7°C (60.3°F). Note: The majority of individuals do not enjoy swimming in water that is 15.7°C (60.3°F). Weather in September »
Weather in October
In Slite, Sweden, the average seawater temperature in October is 11.1°C (52°F). Note: Swimming at temperatures less than 10°C (50°F) in 11.1°C (52°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. Weather in October »
Weather in November
In Slite, Sweden, in November, the average water temperature is 7.8°C (46°F). Note: Dipping into 7.8°C (46°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Weather in November »
Weather in December
In Slite, Sweden, the average seawater temperature in December is 5.1°C (41.2°F). Note: It is life-risking to swim in 5.1°C (41.2°F). Briefly staying in 13°C (55.4°F) waters feels unsettling, and temperatures below 10°C (50°F) might result in cold shock and loss of breath control, hinging on personal endurance. Weather in December »
[Resources]Frequently asked questions
What is the month with the coldest sea water in Slite?
March is the month with the coldest seawater, with an average sea temperature of 1.8°C (35.2°F).
When are the longest days in Slite?
With an average of 18h and 0min of daylight, June has the longest days of the year in Slite.
What is the month with the warmest sea water in Slite?
August is the month with the warmest seawater, with an average sea temperature of 18.8°C (65.8°F).
When is Daylight Saving Time (DST) in Slite?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the month with the shortest days in Slite?
The month with the shortest days in Slite is December, with an average of 6h and 42min of daylight.
Average sea temperature
Slite, Sweden
The best month for swimming (with the highest average sea temperature) is August (18.8°C).
The coldest month (with the lowest average sea temperature) is March (1.8°C).
Average daylight
Slite, Sweden
- Average daylight in January:
7h and 2min - Average daylight in February:
9h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 2min - Average daylight in May:
16h and 4min - Average daylight in June:
18h and 0min
- Average daylight in July:
17h and 2min - Average daylight in August:
15h and 1min - Average daylight in September:
12h and 5min - Average daylight in October:
10h and 2min - Average daylight in November:
8h and 0min - Average daylight in December:
6h and 4min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 42min).
Slite, Sweden
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