What is the current water temperature in Kópavogur?

Q: What is the current water temperature in Kópavogur?

As of now, in Kópavogur, the water temperature is 4.64°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 > Kópavogur

Water temperature in Kópavogur

Detailed information about the current water temperature in Kópavogur. 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.

40.4

°F

April 22, 00:43

Trend:

increasing

Yesterday:

40.3°F

Tomorrow:

40.6°F

Sunrise:

05:32

Sunset:

21:22

Day Length:

15 h. 50 min.

Kópavogur in April

Minimum:

33.9°F

Average:

37.6°F

Maximum:

40.1°F

Sea water temperature in Kópavogur today

As of now, in Kópavogur, the water temperature is 40.4°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 0.2°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 rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. 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 41.9°F on 2025, while the historical minimum was 39.0°F on 2024.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 41.3°F, with minimum temperature starting at 40.6°F, while the maximum might reach 41.9°F.

Daily water temperature in Kópavogur

Date	Current Year actual* / forecast**	last year	10 years average
Apr 8	37.1°F	41.1°F	38.7°F
Apr 9	37.3°F	41.0°F	38.8°F
Apr 10	37.5°F	39.9°F	38.7°F
Apr 11	37.7°F	40.9°F	38.9°F
Apr 12	37.7°F	42.0°F	39.2°F
Apr 13	37.5°F	41.9°F	39.1°F
Apr 14	37.9°F	42.0°F	39.2°F
Apr 15	38.0°F	41.5°F	39.5°F
Apr 16	37.9°F	41.6°F	39.6°F
Apr 17	38.3°F	41.9°F	39.7°F
Apr 18	38.7°F	41.9°F	39.8°F
Apr 19	40.0°F	41.7°F	40.2°F
Apr 20	40.4°F	41.6°F	40.3°F
Apr 21	40.3°F	42.4°F	40.5°F
Apr 22	40.4°F	41.9°F	40.6°F
Apr 23	40.6°F	42.2°F	40.8°F
Apr 24	40.9°F	42.2°F	41.1°F
Apr 25	41.2°F	43.2°F	41.4°F
Apr 26	41.4°F	43.2°F	41.6°F
Apr 27	41.5°F	43.4°F	41.7°F
Apr 28	41.4°F	43.2°F	41.6°F
Apr 29	41.9°F	43.4°F	42.1°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 Kópavogur by month

In an average year, Kópavogur offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Kópavogur was recorded on September 5, 2025, reaching a 56.8°F. While the coldest temperature occurred on February 19, 2017, dipping to 33.0°F. The average readings by season are 37.6°F in Winter, 40.7°F in Spring, 51.7°F in Summer, and 47.1°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Reykjavík	40.1°F	2mi
Hafnarfjörður	40.5°F	3mi
Álftanes	41.0°F	3mi
Akranes	40.0°F	15mi
Keflavík	43.8°F	21mi

* current water temperature in this city

** straight line distance from Kópavogur