Daily rainfall, frost and wind for Cardiff against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
CF10 1EP · 1 Mar 2026 – 31 Mar 2026
Rainfall over this period was 69% of the 10-year average for the same calendar window at this location. Conditions were drier than typical for the time of year. 3 days had gusts at or above 47 mph.
Rainfall vs 10-yr avg
69%
67 mm vs 96 mm typical
Rain days >5mm
3
typical: 7.4
Frost days
0
typical: 1.8
High-wind days
3
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Mar 2026 | 6.5 | 6.8 | 12.6 | 35 | wet |
| 2 Mar 2026 | 0.1 | 8.4 | 13.8 | 34 | |
| 3 Mar 2026 | 0.0 | 8.4 | 12.5 | 23 | |
| 4 Mar 2026 | 0.0 | 5.9 | 13.8 | 18 | |
| 5 Mar 2026 | 0.0 | 6.2 | 14.3 | 19 | |
| 6 Mar 2026 | 0.4 | 6.2 | 10.3 | 22 | |
| 7 Mar 2026 | 0.3 | 5.5 | 9.2 | 20 | |
| 8 Mar 2026 | 0.4 | 8.2 | 10.4 | 16 | |
| 9 Mar 2026 | 2.1 | 8.0 | 11.9 | 16 | |
| 10 Mar 2026 | 2.5 | 6.5 | 11.3 | 31 | |
| 11 Mar 2026 | 2.6 | 8.2 | 10.7 | 40 | |
| 12 Mar 2026 | 27.2 | 8.4 | 12.0 | 51 | wet · wind |
| 13 Mar 2026 | 8.6 | 4.4 | 10.3 | 48 | wet · wind |
| 14 Mar 2026 | 0.4 | 1.7 | 10.0 | 19 | |
| 15 Mar 2026 | 2.1 | 3.2 | 10.6 | 44 | |
| 16 Mar 2026 | 2.2 | 7.1 | 11.2 | 35 | |
| 17 Mar 2026 | 0.0 | 7.6 | 12.6 | 28 | |
| 18 Mar 2026 | 0.0 | 5.8 | 17.3 | 21 | |
| 19 Mar 2026 | 0.0 | 5.8 | 14.8 | 24 | |
| 20 Mar 2026 | 0.0 | 4.7 | 13.8 | 19 | |
| 21 Mar 2026 | 0.0 | 4.5 | 13.1 | 13 | |
| 22 Mar 2026 | 0.0 | 3.3 | 12.5 | 19 | |
| 23 Mar 2026 | 0.0 | 4.7 | 12.4 | 21 | |
| 24 Mar 2026 | 2.7 | 8.6 | 12.2 | 54 | wind |
| 25 Mar 2026 | 1.4 | 4.6 | 8.4 | 46 | |
| 26 Mar 2026 | 0.0 | 4.3 | 10.5 | 25 | |
| 27 Mar 2026 | 2.9 | 7.1 | 11.4 | 30 | |
| 28 Mar 2026 | 0.0 | 4.2 | 9.6 | 34 | |
| 29 Mar 2026 | 4.3 | 2.7 | 10.2 | 45 | |
| 30 Mar 2026 | 0.1 | 6.4 | 12.5 | 31 | |
| 31 Mar 2026 | 0.0 | 8.1 | 14.5 | 29 |
3 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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