Daily rainfall, frost and wind for Bournemouth against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
BH1 1LN · 1 Sept 2025 – 30 Sept 2025
Rainfall over this period was 157% of the 10-year average for the same calendar window at this location. Conditions were materially wetter than typical for the time of year. 4 days had gusts at or above 47 mph.
Rainfall vs 10-yr avg
157%
79 mm vs 50 mm typical
Rain days >5mm
5
typical: 3.5
Frost days
0
typical: 0.0
High-wind days
4
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Sept 2025 | 1.9 | 14.7 | 18.7 | 37 | |
| 2 Sept 2025 | 10.0 | 15.1 | 18.5 | 36 | wet |
| 3 Sept 2025 | 25.5 | 15.9 | 19.4 | 57 | wet · wind |
| 4 Sept 2025 | 5.8 | 13.8 | 18.7 | 36 | wet |
| 5 Sept 2025 | 0.2 | 12.6 | 19.2 | 23 | |
| 6 Sept 2025 | 0.0 | 15.4 | 20.2 | 37 | |
| 7 Sept 2025 | 1.5 | 15.9 | 21.4 | 34 | |
| 8 Sept 2025 | 0.4 | 14.0 | 18.2 | 30 | |
| 9 Sept 2025 | 2.2 | 14.5 | 17.7 | 31 | |
| 10 Sept 2025 | 8.3 | 13.7 | 17.2 | 32 | wet |
| 11 Sept 2025 | 0.0 | 13.1 | 16.8 | 47 | |
| 12 Sept 2025 | 1.7 | 12.5 | 16.8 | 41 | |
| 13 Sept 2025 | 2.3 | 12.3 | 17.0 | 38 | |
| 14 Sept 2025 | 6.5 | 10.3 | 18.0 | 50 | wet · wind |
| 15 Sept 2025 | 1.1 | 14.3 | 16.9 | 55 | wind |
| 16 Sept 2025 | 0.7 | 12.7 | 17.3 | 33 | |
| 17 Sept 2025 | 3.6 | 14.2 | 17.6 | 44 | |
| 18 Sept 2025 | 1.0 | 16.2 | 18.6 | 39 | |
| 19 Sept 2025 | 0.0 | 15.0 | 20.6 | 21 | |
| 20 Sept 2025 | 3.9 | 12.5 | 18.1 | 52 | wind |
| 21 Sept 2025 | 0.0 | 9.4 | 14.9 | 25 | |
| 22 Sept 2025 | 0.0 | 7.3 | 15.7 | 26 | |
| 23 Sept 2025 | 0.0 | 6.0 | 16.2 | 22 | |
| 24 Sept 2025 | 0.2 | 8.8 | 16.9 | 26 | |
| 25 Sept 2025 | 0.0 | 8.6 | 18.0 | 26 | |
| 26 Sept 2025 | 0.0 | 8.0 | 15.1 | 21 | |
| 27 Sept 2025 | 1.1 | 12.2 | 15.5 | 28 | |
| 28 Sept 2025 | 1.3 | 11.3 | 17.9 | 22 | |
| 29 Sept 2025 | 0.0 | 7.5 | 18.1 | 16 | |
| 30 Sept 2025 | 0.0 | 7.5 | 17.3 | 16 |
5 days with rainfall over 5 mm in this period.
Data: ERA5 reanalysis via Open-Meteo, taken at the nearest model grid point to the postcode — not a Met Office station record. Baselines are the mean of the same calendar months over the previous 10 years at this location. Whether conditions meet a contractual test (e.g. JCT “exceptionally adverse weather” or an NEC 1-in-10-year event) is a matter for the contract — this is a factual weather record, not advice.
Need this for your exact site and dates?
Run the free tool with your postcode and claim period — print-ready evidence in seconds.
Check your site's dates