What is the current water temperature in Reykjavík?

Q: What is the current water temperature in Reykjavík?

As of now, in Reykjavík, the water temperature is 6.29°C. 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.

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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.

43.3

°F

May 6, 01:07

Trend:

increasing

Yesterday:

43.1°F

Tomorrow:

43.4°F

Sunrise:

04:44

Sunset:

22:06

Day Length:

17 h. 22 min.

Reykjavík in May

Minimum:

33.1°F

Average:

37.0°F

Maximum:

39.5°F

Sea water temperature in Reykjavík today

As of now, in Reykjavík, the water temperature is 43.3°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 about the same as 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 rise 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 44.9°F on 2019, while the historical minimum was 42.1°F on 2024.

latest data

last year

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 minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 43.8°F, with minimum temperature starting at 43.4°F, while the maximum might reach 44.3°F.

Daily water temperature in Reykjavík

Date	Current Year actual* / forecast**	last year	10 years average
Apr 22	39.5°F	41.8°F	40.4°F
Apr 23	38.6°F	42.2°F	40.6°F
Apr 24	38.6°F	42.2°F	40.9°F
Apr 25	39.7°F	43.1°F	41.1°F
Apr 26	41.6°F	43.1°F	41.5°F
Apr 27	41.5°F	43.3°F	41.6°F
Apr 28	40.9°F	43.1°F	41.5°F
Apr 29	41.1°F	43.3°F	41.9°F
Apr 30	41.7°F	43.3°F	42.2°F
May 1	41.9°F	43.6°F	42.3°F
May 2	42.3°F	43.7°F	42.5°F
May 3	42.2°F	43.9°F	42.6°F
May 4	43.1°F	43.8°F	42.7°F
May 5	43.1°F	43.8°F	42.9°F
May 6	43.3°F	43.9°F	43.2°F
May 7	43.4°F	43.9°F	43.3°F
May 8	43.5°F	44.3°F	43.3°F
May 9	43.7°F	44.4°F	43.6°F
May 10	43.8°F	44.5°F	43.7°F
May 11	44.0°F	44.6°F	43.9°F
May 12	44.0°F	44.7°F	43.9°F
May 13	44.3°F	45.6°F	44.2°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

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, 51.7°F in Summer, and 47.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kópavogur	43.5°F	2mi
Álftanes	43.8°F	4mi
Hafnarfjörður	43.5°F	5mi
Akranes	42.4°F	14mi
Keflavík	44.7°F	22mi

* current water temperature in this city

** straight line distance from Reykjavík