Daily rainfall, frost and wind for Southampton against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
SO14 7DU · 1 Jan 2026 – 31 Jan 2026
Rainfall over this period was 230% of the 10-year average for the same calendar window at this location. Conditions were materially wetter than typical for the time of year.
Rainfall vs 10-yr avg
230%
179 mm vs 78 mm typical
Rain days >5mm
11
typical: 5.6
Frost days
9
typical: 9.0
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Jan 2026 | 0.0 | -2.0 | 6.4 | 24 | frost |
| 2 Jan 2026 | 0.5 | -0.4 | 3.9 | 26 | frost |
| 3 Jan 2026 | 0.0 | -1.9 | 3.4 | 24 | frost |
| 4 Jan 2026 | 0.0 | -3.4 | 3.6 | 16 | frost |
| 5 Jan 2026 | 0.0 | -2.5 | 2.2 | 19 | frost |
| 6 Jan 2026 | 2.8 | -4.3 | 5.0 | 27 | frost |
| 7 Jan 2026 | 8.1 | 1.5 | 6.5 | 30 | wet |
| 8 Jan 2026 | 17.8 | 3.1 | 9.6 | 38 | wet |
| 9 Jan 2026 | 2.5 | 2.4 | 6.4 | 45 | |
| 10 Jan 2026 | 0.0 | -1.5 | 4.5 | 24 | frost |
| 11 Jan 2026 | 7.6 | -0.1 | 10.2 | 43 | wet · frost |
| 12 Jan 2026 | 2.5 | 9.6 | 11.4 | 39 | |
| 13 Jan 2026 | 15.4 | 7.3 | 10.5 | 28 | wet |
| 14 Jan 2026 | 2.6 | -1.4 | 9.5 | 28 | frost |
| 15 Jan 2026 | 18.8 | 5.5 | 9.1 | 38 | wet |
| 16 Jan 2026 | 3.8 | 3.0 | 9.7 | 22 | |
| 17 Jan 2026 | 3.7 | 6.0 | 9.7 | 17 | |
| 18 Jan 2026 | 0.6 | 5.9 | 10.8 | 19 | |
| 19 Jan 2026 | 2.3 | 7.7 | 9.9 | 17 | |
| 20 Jan 2026 | 7.6 | 7.0 | 9.5 | 44 | wet |
| 21 Jan 2026 | 13.9 | 5.4 | 10.6 | 43 | wet |
| 22 Jan 2026 | 4.0 | 6.5 | 9.4 | 29 | |
| 23 Jan 2026 | 4.9 | 5.9 | 9.3 | 38 | |
| 24 Jan 2026 | 7.2 | 6.5 | 8.9 | 43 | wet |
| 25 Jan 2026 | 3.5 | 4.4 | 7.3 | 24 | |
| 26 Jan 2026 | 2.9 | 3.9 | 7.7 | 32 | |
| 27 Jan 2026 | 22.5 | 5.7 | 10.5 | 42 | wet |
| 28 Jan 2026 | 6.4 | 2.6 | 9.4 | 16 | wet |
| 29 Jan 2026 | 1.9 | 3.6 | 8.0 | 32 | |
| 30 Jan 2026 | 13.8 | 6.0 | 10.3 | 32 | wet |
| 31 Jan 2026 | 1.2 | 5.5 | 10.1 | 25 |
11 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.
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