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 8.86°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.

47.9

°F

October 19, 09:10

Trend:

decreasing

Yesterday:

48.3°F

Tomorrow:

47.8°F

Sunrise:

08:31

Sunset:

17:58

Day Length:

9 h. 27 min.

Keflavík in October

Minimum:

39.1°F

Average:

40.5°F

Maximum:

42.4°F

Sea water temperature in Keflavík today

As of now, in Keflavík, the water temperature is 47.9°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 0.9°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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 48.3°F on 2019, while the historical minimum was 45.8°F on 2018.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 47.6°F, the minimum temperature may reach 47.3°F, and the maximum might stay at 47.8°F.

Daily water temperature in Keflavík

Date	Current Year actual* / forecast**	last year	10 years average
Oct 5	49.9°F	50.5°F	48.8°F
Oct 6	49.6°F	50.1°F	48.6°F
Oct 7	49.6°F	49.9°F	48.5°F
Oct 8	49.5°F	49.7°F	48.3°F
Oct 9	49.1°F	49.6°F	48.3°F
Oct 10	49.2°F	49.2°F	48.2°F
Oct 11	49.0°F	49.0°F	48.0°F
Oct 12	48.8°F	49.2°F	47.9°F
Oct 13	49.0°F	49.1°F	47.7°F
Oct 14	49.0°F	48.9°F	47.6°F
Oct 15	48.9°F	48.0°F	47.5°F
Oct 16	48.3°F	47.8°F	47.4°F
Oct 17	48.3°F	47.8°F	47.3°F
Oct 18	48.3°F	46.9°F	47.1°F
Oct 19	47.9°F	47.9°F	47.0°F
Oct 20	47.8°F	48.1°F	46.9°F
Oct 21	47.8°F	48.1°F	46.9°F
Oct 22	47.7°F	48.6°F	46.8°F
Oct 23	47.5°F	48.4°F	46.6°F
Oct 24	47.4°F	48.3°F	46.5°F
Oct 25	47.4°F	47.9°F	46.5°F
Oct 26	47.3°F	47.5°F	46.4°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 40.4°F in Winter, 42.2°F in Spring, 51.0°F in Summer, and 47.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Álftanes	47.6°F	18mi
Hafnarfjörður	47.5°F	19mi
Kópavogur	47.5°F	21mi
Reykjavík	47.4°F	22mi
Akranes	47.4°F	26mi

* current water temperature in this city

** straight line distance from Keflavík