All data are in degrees Fahrenheit

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Iceland > Reykjavík

Water temperature in Reykjavík

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

54.1

°F

August 21, 20:51

Trend:

decreasing

Yesterday:

54.5°F

Tomorrow:

53.9°F

Sunrise:

05:36

Sunset:

21:24

Day Length:

15 h. 48 min.

Reykjavík in August

Minimum:

33.0°F

Average:

37.1°F

Maximum:

39.8°F

Sea water temperature in Reykjavík today

As of now, in Reykjavík, the water temperature is 54.1°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 0.8°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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming 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 55.6°F on 2023, while the historical minimum was 51.0°F on 2022.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 53.5°F, the minimum temperature may reach 53.2°F, and the maximum might stay at 53.9°F.

Daily water temperature in Reykjavík

Date Current Year

actual* / forecast**

 last year 10 years average
Aug 7 53.9°F 53.9°F 53.9°F
Aug 8 54.2°F 53.6°F 53.8°F
Aug 9 52.8°F 53.5°F 53.8°F
Aug 10 52.3°F 53.6°F 53.9°F
Aug 11 52.4°F 53.6°F 53.9°F
Aug 12 52.3°F 52.8°F 53.4°F
Aug 13 51.8°F 52.4°F 53.4°F
Aug 14 52.4°F 52.3°F 53.3°F
Aug 15 53.0°F 52.5°F 53.5°F
Aug 16 53.0°F 52.1°F 53.4°F
Aug 17 53.6°F 52.1°F 53.5°F
Aug 18 54.2°F 52.1°F 53.4°F
Aug 19 54.4°F 53.1°F 53.4°F
Aug 20 54.5°F 53.0°F 53.3°F
Aug 21 54.1°F 54.6°F 53.4°F
Aug 22 53.9°F 53.7°F 53.2°F
Aug 23 53.9°F 53.4°F 53.2°F
Aug 24 53.7°F 53.3°F 53.0°F
Aug 25 53.5°F 52.8°F 52.8°F
Aug 26 53.3°F 53.3°F 52.5°F
Aug 27 53.2°F 53.8°F 52.4°F
Aug 28 53.2°F 54.0°F 52.5°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 Reykjavík by month

January

February

March

April

May

June

July

August

September

October

November

December

In an average year, Reykjavík offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Reykjavík was recorded on September 5, 2025, reaching a 57.1°F. While the coldest temperature occurred on February 19, 2017, dipping to 32.5°F. The average readings by season are 37.4°F in Winter, 40.7°F in Spring, 51.8°F in Summer, and 47.0°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kópavogur 54.1°F 2mi
Álftanes 53.9°F 4mi
Hafnarfjörður 54.0°F 5mi
Akranes 53.0°F 14mi
Keflavík 53.0°F 22mi

* current water temperature in this city

** straight line distance from Reykjavík