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 11.5°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.

52.7

°F

August 27, 21:30

Trend:

stable

Yesterday:

53.3°F

Tomorrow:

52.7°F

Sunrise:

05:54

Sunset:

21:02

Day Length:

15 h. 8 min.

Reykjavík in September

Minimum:

33.0°F

Average:

37.1°F

Maximum:

39.9°F

Sea water temperature in Reykjavík today

As of now, in Reykjavík, the water temperature is 52.7°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 0.3°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 54.9°F on 2023, while the historical minimum was 49.9°F on 2022.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 52.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Reykjavík

Date	Current Year actual* / forecast**	last year	10 years average
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	54.0°F	53.7°F	53.2°F
Aug 23	53.8°F	53.4°F	53.2°F
Aug 24	53.8°F	53.3°F	53.0°F
Aug 25	53.6°F	52.8°F	52.9°F
Aug 26	53.3°F	53.3°F	52.6°F
Aug 27	52.7°F	53.8°F	52.4°F
Aug 28	52.7°F	54.0°F	52.5°F
Aug 29	52.7°F	54.9°F	52.4°F
Aug 30	52.8°F	56.1°F	52.6°F
Aug 31	52.7°F	55.8°F	52.5°F
Sep 1	52.9°F	56.2°F	52.7°F
Sep 2	52.7°F	56.9°F	52.5°F
Sep 3	52.4°F	56.3°F	52.1°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 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, 51.8°F in Summer, and 47.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kópavogur	52.6°F	2mi
Álftanes	52.6°F	4mi
Hafnarfjörður	52.6°F	5mi
Akranes	52.5°F	14mi
Keflavík	52.5°F	22mi

* current water temperature in this city

** straight line distance from Reykjavík