Water temperature in Hafnarfjörður
46.8
°F
October 23, 17:37
Trend:
decreasingYesterday:
46.8°FTomorrow:
46.6°F
Sunrise:
Sunset:
Day Length:
9 h. 1 min.Hafnarfjörður in October
Minimum:
35.0°FAverage:
37.7°FMaximum:
40.1°FSea water temperature in Hafnarfjörður today
As of now, in Hafnarfjörður, the water temperature is 46.8°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 0.6°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 fall a bit.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 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 48.7°F on 2025, while the historical minimum was 44.3°F on 2021.
Daily water temperature in Hafnarfjörður
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Oct 9 | 48.5°F | 49.8°F | 47.8°F |
| Oct 10 | 48.6°F | 49.5°F | 47.7°F |
| Oct 11 | 48.5°F | 49.9°F | 47.7°F |
| Oct 12 | 48.3°F | 50.8°F | 47.6°F |
| Oct 13 | 48.4°F | 50.9°F | 47.4°F |
| Oct 14 | 48.5°F | 50.5°F | 47.2°F |
| Oct 15 | 48.4°F | 51.1°F | 47.2°F |
| Oct 16 | 47.8°F | 52.1°F | 47.3°F |
| Oct 17 | 47.5°F | 53.0°F | 47.2°F |
| Oct 18 | 47.7°F | 53.0°F | 47.1°F |
| Oct 19 | 47.5°F | 52.6°F | 47.0°F |
| Oct 20 | 47.3°F | 52.7°F | 46.9°F |
| Oct 21 | 47.2°F | 52.3°F | 46.9°F |
| Oct 22 | 46.8°F | 50.1°F | 46.6°F |
| Oct 23 | 46.8°F | 48.7°F | 46.2°F |
| Oct 24 | 46.6°F | 47.9°F | 46.0°F |
| Oct 25 | 46.6°F | 48.5°F | 46.0°F |
| Oct 26 | 46.5°F | 48.7°F | 45.9°F |
| Oct 27 | 46.3°F | 47.5°F | 45.7°F |
| Oct 28 | 46.2°F | 47.7°F | 45.6°F |
| Oct 29 | 46.0°F | 46.9°F | 45.4°F |
| Oct 30 | 45.8°F | 47.2°F | 45.3°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.