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 4.85°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.

40.7

°F

December 22, 05:52

Trend:

decreasing

Yesterday:

40.8°F

Tomorrow:

40.7°F

Sunrise:

11:23

Sunset:

15:35

Day Length:

4 h. 12 min.

Keflavík in December

Minimum:

38.6°F

Average:

40.2°F

Maximum:

41.9°F

Sea water temperature in Keflavík today

As of now, in Keflavík, the water temperature is 40.7°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 0.5°F lower 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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 43.3°F on 2016, while the historical minimum was 39.1°F on 2022.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 40.5°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
Dec 8	40.7°F	42.9°F	42.5°F
Dec 9	40.8°F	42.5°F	42.4°F
Dec 10	40.3°F	42.5°F	42.2°F
Dec 11	40.4°F	42.6°F	42.1°F
Dec 12	40.2°F	42.6°F	41.9°F
Dec 13	40.5°F	42.7°F	41.8°F
Dec 14	40.7°F	42.6°F	41.8°F
Dec 15	40.2°F	42.4°F	41.8°F
Dec 16	40.1°F	42.2°F	41.6°F
Dec 17	40.1°F	42.7°F	41.7°F
Dec 18	40.2°F	42.3°F	41.6°F
Dec 19	40.3°F	42.3°F	41.5°F
Dec 20	40.4°F	42.0°F	41.3°F
Dec 21	40.8°F	42.0°F	41.3°F
Dec 22	40.7°F	41.6°F	41.2°F
Dec 23	40.7°F	42.3°F	41.2°F
Dec 24	40.6°F	42.0°F	41.1°F
Dec 25	40.4°F	41.8°F	40.9°F
Dec 26	40.4°F	41.8°F	40.9°F
Dec 27	40.3°F	40.8°F	40.8°F
Dec 28	40.4°F	41.8°F	40.9°F
Dec 29	40.3°F	41.3°F	40.7°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, 51.0°F in Summer, and 47.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Álftanes	36.8°F	18mi
Hafnarfjörður	36.7°F	19mi
Kópavogur	36.6°F	21mi
Reykjavík	36.5°F	22mi
Akranes	37.1°F	26mi

* current water temperature in this city

** straight line distance from Keflavík