Weather in April
April introduces a tangible change in Seltjarnarnes's weather with a more distinct lean into spring's embrace. The seaside town experiences a shift in the climate, trading the winter chill for modest warmth. Sea temperature sees a rise to 5.6°C (42.1°F), complementing the increase in daylight hours. While April's weather is milder compared to March, the Icelanders still look forward to further warm-up as May approaches. This period marks a welcoming change, paving the way for the toastier conditions typical of late spring.
Note: Unprotected swimming in 5.6°C (42.1°F) is dangerous due to potential cold shock. Especially when temperatures go below 10°C (50°F), leading to hyperventilation.
On the first day of April, sunrise is at 06:43 and sunset at 20:20. On the last day of the month, sunrise is at 05:00 and sunset at 21:49 GMT.
Sea temperature
In Seltjarnarnes, the average seawater temperature in April is 5.6°C (42.1°F).Note: Unprotected swimming in 5.6°C (42.1°F) is dangerous due to potential cold shock. Especially when temperatures go below 10°C (50°F), leading to hyperventilation.
Daylight
In Seltjarnarnes, the average length of the day in April is 15h and 9min.On the first day of April, sunrise is at 06:43 and sunset at 20:20. On the last day of the month, sunrise is at 05:00 and sunset at 21:49 GMT.
Updated: Feb 10, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the water temperature in April in Seltjarnarnes?
In April, the average sea temperature in Seltjarnarnes is 5.6°C (42.1°F). Swimming in 5.6°C (42.1°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
What is the average length of the day in April in Seltjarnarnes?
The average day length in April in Seltjarnarnes, Iceland, is 15h and 9min.
When are sunrise and sunset in April in Seltjarnarnes?
On the first day of April in Seltjarnarnes, Iceland, sunrise is at 06:43 and sunset at 20:20. On the last day of the month, sunrise is at 05:00 and sunset at 21:49 GMT.
Average sea temperature in April
Seltjarnarnes, Iceland
- Average sea temperature in April: 5.6°C
The best months for swimming (with the highest average sea temperature) are July and August (11.3°C).
The coldest month (with the lowest average sea temperature) is March (4.3°C).
Average daylight in April
Seltjarnarnes, Iceland
- Average daylight in April: 15h and 1min
The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 24min).
Seltjarnarnes, Iceland
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