| Sat May 18 | Sun May 19 | Mon May 20 | Tue May 21 | |
| Tmin 18-06 |
8°C | 8°C | 9°C | 11°C |
| Tmax 06-18 |
16°C | 16°C | 16°C | 15°C |
| morning 24-06 |
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| a.m. 06-12 |
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| p.m. 12-18 |
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| evening 18-24 |
| Nearby Weather Stations - Harwich | Distance |
| Wattisham | 37.5 km |
| Shoeburyness Landwick | 45.6 km |
| Southend-on-Sea AP | 51.1 km |
| Manston | 55.8 km |
| Manston South East | 57.6 km |
| London Stansted Airport | 72.3 km |
| Mildenhall Royal Air Force | 79.4 km |
| Lakenheath | 79.9 km |
| Langdon Bay | 79.9 km |
| Gravesend Broadness | 80.2 km |
| Norwich Weather Centre | 87.2 km |
| Marham | 101.6 km |
| Lydd Airport | 103.1 km |