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 4.92°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.

40.9

°F

March 15, 03:04

Trend:

stable

Yesterday:

40.9°F

Tomorrow:

41.0°F

Sunrise:

07:50

Sunset:

19:30

Day Length:

11 h. 40 min.

Keflavík in March

Minimum:

38.7°F

Average:

40.3°F

Maximum:

42.3°F

Sea water temperature in Keflavík today

As of now, in Keflavík, the water temperature is 40.9°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 1.3°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 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 41.5°F on 2021, while the historical minimum was 37.6°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 41.1°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
Mar 1	41.0°F	39.5°F	39.9°F
Mar 2	41.0°F	39.5°F	39.8°F
Mar 3	40.9°F	39.3°F	39.8°F
Mar 4	41.0°F	38.7°F	39.7°F
Mar 5	41.0°F	39.2°F	39.7°F
Mar 6	40.8°F	39.2°F	39.7°F
Mar 7	41.0°F	39.3°F	39.6°F
Mar 8	41.1°F	39.5°F	39.7°F
Mar 9	40.7°F	40.2°F	39.8°F
Mar 10	40.7°F	39.7°F	39.7°F
Mar 11	40.0°F	39.7°F	39.6°F
Mar 12	40.1°F	39.8°F	39.6°F
Mar 13	40.4°F	39.8°F	39.5°F
Mar 14	40.9°F	41.0°F	39.7°F
Mar 15	40.9°F	40.0°F	39.6°F
Mar 16	41.0°F	41.1°F	39.7°F
Mar 17	41.1°F	40.8°F	39.8°F
Mar 18	41.0°F	40.7°F	39.8°F
Mar 19	41.0°F	41.3°F	39.8°F
Mar 20	41.0°F	41.5°F	39.7°F
Mar 21	41.2°F	41.2°F	40.0°F
Mar 22	41.3°F	41.2°F	40.0°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, 42.0°F in Spring, 50.8°F in Summer, and 47.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Álftanes	38.3°F	18mi
Hafnarfjörður	38.1°F	19mi
Kópavogur	38.1°F	21mi
Reykjavík	38.0°F	22mi
Akranes	37.5°F	26mi

* current water temperature in this city

** straight line distance from Keflavík