11kph (North East)
15th May 2026
Weather data accurate as of 9th May 2026
Swimming at Harthill is all about embracing the elements, but it helps to know what you’re diving into. We’ve been tracking the local conditions to help you plan your next dip and understand the seasonal shifts of our Yorkshire waters. Check out our historical logs below to see how the reservoir is holding up.
| Date | Air Temp | Water Temp | Wind Speed | Wind Direction |
|---|---|---|---|---|
| 09/05/2026 | 14.2°C 11kph North East | 15.5°C | 11 kph | North East |
| 02/05/2026 | 18.4°C 13kph North | 17.1°C | 13 kph | North |
| 18/04/2026 | 13°C 24kph East | 13.1°C | 24 kph | East |
| 11/04/2026 | 9.7°C | 12.1°C | — | — |
| 27/03/2026 | 9.9°C | 10°C | — | — |
| 19/03/2026 | 13.8°C | 11°C | — | — |
| 14/03/2026 | 10.1°C | 8.7°C | — | — |
| 05/03/2026 | 10.4°C | 9.6°C | — | — |
| 27/02/2026 | 9.0°C | 8.7°C | — | — |
| 29/01/2026 | 3.9°C | 4.6°C | — | — |
| 24/01/2026 | 8.7°C | 5.5°C | — | — |
| 17/01/2026 | 8.7°C | 3.4°C | — | — |
| 03/01/2026 | 2.6°C | 2.6°C | — | — |
| 13/12/2025 | 7.1°C | 6.8°C | — | — |
| 06/12/2025 | 11°C | 6.1°C | — | — |
| 29/11/2025 | 6.4°C | 5.8°C | — | — |
| 02/08/2025 | 19.1°C | 19.7°C | — | — |
| 25/07/2025 | 24.5°C | 23.7°C | — | — |
| 11/07/2025 | 30°C | 26.4°C | — | — |
| 05/07/2025 | 20.5°C | 21°C | — | — |
| 14/06/2025 | 22.2°C | 20.2°C | — | — |
| 07/06/2025 | 14.7°C | 16.8°C | — | — |
| 17/05/2025 | 14.9°C | 16.9°C | — | — |
| 10/05/2025 | 21.8°C | 17.7°C | — | — |
| 03/05/2025 | 12.7°C | 18.2°C | — | — |
| 02/05/2025 | 18.8°C | 19.8°C | — | — |
| 26/04/2025 | 16.3°C | 13.1°C | — | — |
| 19/04/2025 | 14.8°C | 12.5°C | — | — |
| 18/04/2025 | 11.9°C | 12.7°C | — | — |
| 08/04/2025 | 11.3°C | 11.7°C | — | — |
| Date | Result |
|---|---|
| 15/05/2026 | Pass |
| 27/03/2026 | Pass |
| 27/02/2026 | Pass |
| 29/11/2025 | Pass |
| 11/07/2025 | Pass |
| 19/04/2025 | Pass |
| 23/03/2025 | Pass |
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