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 12.08°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.

53.7

°F

September 18, 22:04

Trend:

decreasing

Yesterday:

54.5°F

Tomorrow:

53.7°F

Sunrise:

06:58

Sunset:

19:44

Day Length:

12 h. 46 min.

Kópavogur in September

Minimum:

33.5°F

Average:

37.0°F

Maximum:

38.9°F

Sea water temperature in Kópavogur today

As of now, in Kópavogur, the water temperature is 53.7°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 3.6°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 slightly 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 51.2°F on 2021, while the historical minimum was 48.4°F on 2024.

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 53.3°F, the minimum temperature may reach 53.0°F, and the maximum might stay at 53.7°F.

Daily water temperature in Kópavogur

Date	Current Year actual* / forecast**	last year	10 years average
Sep 4	56.7°F	50.3°F	51.9°F
Sep 5	56.8°F	50.3°F	52.0°F
Sep 6	56.0°F	50.2°F	51.8°F
Sep 7	55.4°F	49.9°F	51.8°F
Sep 8	54.8°F	49.8°F	51.7°F
Sep 9	54.3°F	49.8°F	51.7°F
Sep 10	54.2°F	49.8°F	51.4°F
Sep 11	53.8°F	49.6°F	51.4°F
Sep 12	53.5°F	49.2°F	51.2°F
Sep 13	53.7°F	49.0°F	51.0°F
Sep 14	52.9°F	48.6°F	50.9°F
Sep 15	53.6°F	48.5°F	50.8°F
Sep 16	54.5°F	48.4°F	50.8°F
Sep 17	54.5°F	48.3°F	50.7°F
Sep 18	53.7°F	48.4°F	50.2°F
Sep 19	53.7°F	48.3°F	50.1°F
Sep 20	53.5°F	48.0°F	49.9°F
Sep 21	53.4°F	48.1°F	49.8°F
Sep 22	53.3°F	47.7°F	49.7°F
Sep 23	53.2°F	47.9°F	49.6°F
Sep 24	53.1°F	47.9°F	49.5°F
Sep 25	53.0°F	47.7°F	49.4°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 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 37.4°F in Winter, 40.7°F in Spring, 51.5°F in Summer, and 46.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Reykjavík	54.0°F	2mi
Hafnarfjörður	53.5°F	3mi
Álftanes	53.1°F	3mi
Akranes	51.9°F	15mi
Keflavík	51.8°F	21mi

* current water temperature in this city

** straight line distance from Kópavogur