All data are in degrees Fahrenheit

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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.
Sea temperature in Kópavogur now

36.6

°F

March 24, 21:19

Trend:

stable

Yesterday:

36.8°F

Tomorrow:

36.6°F

Sunrise:

07:16

Sunset:

19:54

Day Length:

12 h. 38 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 36.6°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 1.4°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

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 minimum temperature for this date. The maximum temperature recorded for this date was 39.5°F on 2016, while the historical minimum was 35.5°F on 2020.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 36.6°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Kópavogur

Date Current Year

actual* / forecast**

last year 10 years average
Mar 10 37.0°F 37.7°F 37.4°F
Mar 11 36.9°F 37.8°F 37.5°F
Mar 12 36.8°F 37.6°F 37.4°F
Mar 13 37.0°F 37.7°F 37.4°F
Mar 14 37.2°F 38.2°F 37.5°F
Mar 15 36.9°F 37.6°F 37.3°F
Mar 16 36.8°F 37.1°F 37.4°F
Mar 17 37.1°F 38.2°F 37.7°F
Mar 18 37.0°F 38.2°F 37.7°F
Mar 19 36.8°F 39.6°F 37.9°F
Mar 20 37.1°F 39.5°F 38.0°F
Mar 21 37.0°F 39.7°F 38.1°F
Mar 22 36.7°F 39.6°F 38.1°F
Mar 23 36.8°F 39.5°F 38.0°F
Mar 24 36.6°F 39.1°F 38.0°F
Mar 25 36.6°F 39.8°F 38.0°F
Mar 26 36.6°F 39.7°F 38.0°F
Mar 27 36.5°F 39.5°F 37.9°F
Mar 28 36.6°F 39.9°F 38.0°F
Mar 29 36.7°F 39.5°F 38.1°F
Mar 30 36.8°F 40.1°F 38.2°F
Mar 31 36.9°F 40.0°F 38.4°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 37.6°F in Winter, 40.8°F in Spring, 51.7°F in Summer, and 47.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Reykjavík 36.5°F 2mi
Hafnarfjörður 36.7°F 3mi
Álftanes 36.7°F 3mi
Akranes 36.2°F 15mi
Keflavík 39.9°F 21mi

* current water temperature in this city

** straight line distance from Kópavogur