All data are in degrees Fahrenheit

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Water temperature in Akranes

Detailed information about the current water temperature in Akranes. 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 Akranes now

52.4

°F

September 5, 20:37

Trend:

stable

Yesterday:

52.4°F

Tomorrow:

52.3°F

Sunrise:

06:21

Sunset:

20:32

Day Length:

14 h. 11 min.

Akranes in September

Minimum:

35.0°F

Average:

37.4°F

Maximum:

40.4°F

Sea water temperature in Akranes today

As of now, in Akranes, the water temperature is 52.4°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 0.4°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 53.9°F on 2025, while the historical minimum was 50.0°F on 2024.

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 51.9°F, the minimum temperature may reach 51.5°F, and the maximum might stay at 52.3°F.

Daily water temperature in Akranes

Date Current Year

actual* / forecast**

last year 10 years average
Aug 22 53.0°F 53.8°F 52.8°F
Aug 23 52.8°F 54.1°F 53.0°F
Aug 24 53.0°F 54.2°F 52.9°F
Aug 25 52.6°F 53.6°F 52.7°F
Aug 26 52.6°F 54.8°F 52.4°F
Aug 27 52.5°F 54.7°F 52.4°F
Aug 28 52.9°F 54.7°F 52.3°F
Aug 29 52.5°F 54.6°F 52.4°F
Aug 30 52.6°F 54.9°F 52.5°F
Aug 31 53.1°F 55.0°F 52.4°F
Sep 1 53.2°F 54.3°F 52.5°F
Sep 2 52.7°F 54.2°F 52.2°F
Sep 3 52.8°F 54.5°F 52.0°F
Sep 4 52.4°F 54.2°F 52.0°F
Sep 5 52.4°F 53.9°F 52.0°F
Sep 6 52.3°F 53.3°F 51.9°F
Sep 7 52.2°F 53.4°F 51.8°F
Sep 8 52.1°F 52.9°F 51.8°F
Sep 9 52.0°F 52.7°F 51.6°F
Sep 10 51.8°F 52.4°F 51.4°F
Sep 11 51.6°F 51.9°F 51.3°F
Sep 12 51.5°F 51.9°F 51.1°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 Akranes by month

In an average year, Akranes offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Akranes was recorded on August 15, 2021, reaching a 56.8°F. While the coldest temperature occurred on February 1, 2023, dipping to 32.9°F. The average readings by season are 37.7°F in Winter, 40.4°F in Spring, 51.4°F in Summer, and 46.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Reykjavík 52.5°F 14mi
Kópavogur 52.4°F 15mi
Álftanes 52.4°F 15mi
Hafnarfjörður 52.4°F 18mi
Keflavík 51.9°F 26mi

* current water temperature in this city

** straight line distance from Akranes