Water temperature in Hafnarfjörður
50.6
°F
September 23, 17:08
Trend:
decreasingYesterday:
50.8°FTomorrow:
50.4°F
Sunrise:
Sunset:
Day Length:
12 h. 14 min.Hafnarfjörður in September
Minimum:
34.4°FAverage:
37.5°FMaximum:
40.3°FSea water temperature in Hafnarfjörður today
As of now, in Hafnarfjörður, the water temperature is 50.6°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 0.5°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 fall a bit.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 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 54.7°F on 2025, while the historical minimum was 47.9°F on 2024.
Daily water temperature in Hafnarfjörður
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Sep 9 | 52.3°F | 54.2°F | 51.9°F |
| Sep 10 | 51.9°F | 54.1°F | 51.6°F |
| Sep 11 | 51.9°F | 53.7°F | 51.5°F |
| Sep 12 | 51.7°F | 53.3°F | 51.3°F |
| Sep 13 | 51.8°F | 53.5°F | 51.2°F |
| Sep 14 | 51.5°F | 52.8°F | 51.0°F |
| Sep 15 | 51.5°F | 53.4°F | 51.0°F |
| Sep 16 | 51.3°F | 54.3°F | 50.9°F |
| Sep 17 | 50.9°F | 54.3°F | 50.8°F |
| Sep 18 | 50.9°F | 53.5°F | 50.6°F |
| Sep 19 | 50.8°F | 53.1°F | 50.5°F |
| Sep 20 | 50.9°F | 52.6°F | 50.3°F |
| Sep 21 | 50.7°F | 52.6°F | 50.2°F |
| Sep 22 | 50.8°F | 53.7°F | 50.2°F |
| Sep 23 | 50.6°F | 54.7°F | 50.1°F |
| Sep 24 | 50.4°F | 52.7°F | 49.9°F |
| Sep 25 | 50.3°F | 52.6°F | 49.8°F |
| Sep 26 | 50.3°F | 52.5°F | 49.7°F |
| Sep 27 | 50.1°F | 52.2°F | 49.6°F |
| Sep 28 | 49.8°F | 51.2°F | 49.3°F |
| Sep 29 | 49.7°F | 50.9°F | 49.2°F |
| Sep 30 | 49.7°F | 51.1°F | 49.2°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.