Water temperature in Haarlem in January
Is it warm enough to swim in Haarlem in January? Average water temperature in Haarlem in January is 6.2°C and therefore is not suitable for comfortable swimming. The warmest sea in Haarlem in January is 8.8°C, and the coldest is 3.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Haarlem
Changes water temperature in Haarlem in January 2025, 2024
To get an accurate forecast for the water temperature in Haarlem for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Haarlem, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of January.
You can choose any other years:
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| 1 January | 7.6°C | 8.1°C | 5.4°C | 8.8°C |
| 2 January | 7.9°C | 8.2°C | 5.1°C | 8.6°C |
| 3 January | 7.6°C | 8.2°C | 4.6°C | 8.4°C |
| 4 January | 7.3°C | 7.9°C | 4.4°C | 8.5°C |
| 5 January | 7.6°C | 7.8°C | 4.1°C | 8.4°C |
| 6 January | 7.2°C | 7.2°C | 4.1°C | 8.5°C |
| 7 January | 7.4°C | 8.4°C | 4.2°C | 8.4°C |
| 8 January | 7.4°C | 8.2°C | 4.2°C | 8.3°C |
| 9 January | 7°C | 7.7°C | 4.2°C | 8.3°C |
| 10 January | 6.3°C | 7.2°C | 4.2°C | 8.2°C |
| 11 January | 6.2°C | 7°C | 4.3°C | 8.1°C |
| 12 January | 5.9°C | 6.7°C | 4.3°C | 8.1°C |
| 13 January | 6°C | 6.8°C | 4.3°C | 8.2°C |
| 14 January | 5.6°C | 6.6°C | 4.6°C | 8.1°C |
| 15 January | 5.6°C | 6°C | 4.6°C | 8°C |
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| 16 January | 5.6°C | 5.6°C | 4.7°C | 7.9°C |
| 17 January | 5.6°C | 5.6°C | 4.5°C | 8°C |
| 18 January | 5.7°C | 5.4°C | 4.7°C | 8°C |
| 19 January | 5.7°C | 5.3°C | 4.7°C | 7.9°C |
| 20 January | 5.7°C | 5.4°C | 4.3°C | 8.3°C |
| 21 January | 5.7°C | 5.3°C | 4.4°C | 8.1°C |
| 22 January | 5.7°C | 5.2°C | 4.3°C | 8°C |
| 23 January | 5.7°C | 5.6°C | 4.3°C | 7.9°C |
| 24 January | 6°C | 5.5°C | 4.3°C | 7.9°C |
| 25 January | 6.1°C | 4.5°C | 4.2°C | 7.2°C |
| 26 January | 6.1°C | 5.8°C | 4.1°C | 7.5°C |
| 27 January | 6.2°C | 6.3°C | 4°C | 7.3°C |
| 28 January | 6.1°C | 6°C | 4°C | 7.4°C |
| 29 January | 6.1°C | 5.4°C | 4.1°C | 7.1°C |
| 30 January | 5.9°C | 5.6°C | 4°C | 7.2°C |
| 31 January | 5.9°C | 5.9°C | 3.9°C | 6.9°C |
Average water temperature in Haarlem in January over a decade
| 2016 | 2017 | 2018 | 2019 | 2020 |
| 7°C | 5.7°C | 6.2°C | 6.3°C | 6.9°C |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 6.2°C | 6.7°C | 6.9°C | 6.5°C | 6.3°C |
Haarlem sea state in January
Chart comparing the height of waves in Haarlem in January over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.
Haarlem water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
