All data are in degrees Fahrenheit

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Water temperature in Keflavík

Detailed information about the current water temperature in Keflavík. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Keflavík now

40.0

°F

February 5, 10:00

Trend:

stable

Yesterday:

39.7°F

Tomorrow:

39.8°F

Sunrise:

09:59

Sunset:

17:32

Day Length:

7 h. 33 min.

Keflavík in February

Minimum:

38.9°F

Average:

40.6°F

Maximum:

42.4°F

Sea water temperature in Keflavík today

As of now, in Keflavík, the water temperature is 40.0°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.6°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 41.3°F on 2017, while the historical minimum was 38.6°F on 2023.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 39.6°F, the minimum temperature may reach 39.5°F, and the maximum might stay at 39.8°F.

Daily water temperature in Keflavík

Date Current Year

actual* / forecast**

last year 10 years average
Jan 22 40.4°F 39.2°F 39.6°F
Jan 23 40.1°F 39.7°F 39.6°F
Jan 24 40.0°F 39.5°F 39.4°F
Jan 25 40.0°F 39.1°F 39.4°F
Jan 26 39.9°F 39.4°F 39.4°F
Jan 27 39.3°F 39.4°F 39.4°F
Jan 28 39.6°F 38.9°F 39.5°F
Jan 29 39.2°F 39.2°F 39.5°F
Jan 30 38.8°F 39.1°F 39.5°F
Jan 31 39.4°F 39.5°F 39.5°F
Feb 1 39.2°F 38.4°F 39.3°F
Feb 2 39.7°F 38.6°F 39.2°F
Feb 3 39.6°F 38.8°F 39.2°F
Feb 4 39.7°F 38.9°F 39.2°F
Feb 5 40.0°F 38.9°F 39.4°F
Feb 6 39.8°F 38.3°F 39.1°F
Feb 7 39.7°F 38.5°F 39.1°F
Feb 8 39.6°F 37.2°F 39.0°F
Feb 9 39.6°F 36.3°F 38.9°F
Feb 10 39.5°F 36.7°F 38.8°F
Feb 11 39.6°F 37.3°F 38.9°F
Feb 12 39.7°F 37.9°F 39.1°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Keflavík by month

In an average year, Keflavík offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Keflavík was recorded on August 6, 2019, reaching a 56.1°F. While the coldest temperature occurred on February 9, 2024, dipping to 36.3°F. The average readings by season are 40.2°F in Winter, 42.0°F in Spring, 50.8°F in Summer, and 47.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Álftanes 37.6°F 18mi
Hafnarfjörður 37.6°F 19mi
Kópavogur 37.5°F 21mi
Reykjavík 37.4°F 22mi
Akranes 36.8°F 26mi

* current water temperature in this city

** straight line distance from Keflavík