What is the current water temperature in Keflavík?

Q: What is the current water temperature in Keflavík?

As of now, in Keflavík, the water temperature is 5.7°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.

Iceland > Keflavík

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.

42.3

°F

January 1, 05:39

Trend:

stable

Yesterday:

42.2°F

Tomorrow:

42.3°F

Sunrise:

11:20

Sunset:

15:48

Day Length:

4 h. 28 min.

Keflavík in January

Minimum:

38.4°F

Average:

40.6°F

Maximum:

42.4°F

Sea water temperature in Keflavík today

As of now, in Keflavík, the water temperature is 42.3°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 1.7°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 slightly varies from the average of the past two weeks. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 42.4°F on 2017, while the historical minimum was 38.4°F on 2023.

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 42.0°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Keflavík

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	42.3°F	40.7°F	40.6°F
Jan 2	42.3°F	40.9°F	40.6°F
Jan 3	42.0°F	40.7°F	40.3°F
Jan 4	42.0°F	41.0°F	40.3°F
Jan 5	41.8°F	40.6°F	40.1°F
Jan 6	42.0°F	40.4°F	40.3°F
Jan 7	41.9°F	39.5°F	40.2°F
Jan 8	41.8°F	39.2°F	40.1°F
Dec 18	42.4°F	40.2°F	41.7°F
Dec 19	42.3°F	40.3°F	41.6°F
Dec 20	42.2°F	40.4°F	41.3°F
Dec 21	42.3°F	40.8°F	41.3°F
Dec 22	42.4°F	40.3°F	41.2°F
Dec 23	42.4°F	39.7°F	41.1°F
Dec 24	42.3°F	40.7°F	41.2°F
Dec 25	42.3°F	40.2°F	41.0°F
Dec 26	42.5°F	40.5°F	41.0°F
Dec 27	42.6°F	40.4°F	41.0°F
Dec 28	42.5°F	40.2°F	41.0°F
Dec 29	42.7°F	40.3°F	40.9°F
Dec 30	41.8°F	39.9°F	40.6°F
Dec 31	42.2°F	40.0°F	40.5°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 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 40.3°F in Winter, 42.1°F in Spring, 50.9°F in Summer, and 47.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Álftanes	40.7°F	18mi
Hafnarfjörður	40.3°F	19mi
Kópavogur	40.1°F	21mi
Reykjavík	39.8°F	22mi
Akranes	37.6°F	26mi

* current water temperature in this city

** straight line distance from Keflavík