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 Jun 2025 – 30 Jun 2025
Rainfall over this period was 124% of the 10-year average for the same calendar window at this location. Conditions were broadly in line with typical for the time of year.
Rainfall vs 10-yr avg
124%
87 mm vs 70 mm typical
Rain days >5mm
6
typical: 4.8
Frost days
0
typical: 0.0
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Jun 2025 | 1.7 | 12.4 | 16.0 | 41 | |
| 2 Jun 2025 | 0.0 | 9.3 | 16.9 | 26 | |
| 3 Jun 2025 | 7.4 | 12.1 | 15.3 | 37 | wet |
| 4 Jun 2025 | 1.4 | 10.8 | 15.4 | 31 | |
| 5 Jun 2025 | 7.3 | 12.3 | 15.9 | 36 | wet |
| 6 Jun 2025 | 6.4 | 11.5 | 14.8 | 34 | wet |
| 7 Jun 2025 | 8.3 | 10.6 | 14.9 | 33 | wet |
| 8 Jun 2025 | 0.9 | 9.0 | 15.2 | 34 | |
| 9 Jun 2025 | 0.8 | 12.0 | 16.3 | 28 | |
| 10 Jun 2025 | 2.7 | 13.5 | 18.1 | 36 | |
| 11 Jun 2025 | 0.0 | 9.7 | 22.2 | 26 | |
| 12 Jun 2025 | 12.1 | 15.2 | 18.8 | 34 | wet |
| 13 Jun 2025 | 4.2 | 15.8 | 20.2 | 25 | |
| 14 Jun 2025 | 14.1 | 14.1 | 17.6 | 32 | wet |
| 15 Jun 2025 | 0.2 | 13.6 | 17.1 | 34 | |
| 16 Jun 2025 | 0.0 | 14.1 | 19.4 | 21 | |
| 17 Jun 2025 | 0.0 | 13.0 | 18.5 | 31 | |
| 18 Jun 2025 | 0.0 | 13.3 | 21.8 | 18 | |
| 19 Jun 2025 | 0.0 | 13.8 | 27.4 | 19 | |
| 20 Jun 2025 | 0.0 | 17.4 | 28.7 | 22 | |
| 21 Jun 2025 | 2.8 | 16.3 | 27.5 | 33 | |
| 22 Jun 2025 | 2.1 | 15.9 | 19.9 | 40 | |
| 23 Jun 2025 | 1.3 | 13.5 | 17.5 | 38 | |
| 24 Jun 2025 | 4.3 | 15.7 | 19.4 | 39 | |
| 25 Jun 2025 | 1.6 | 16.8 | 21.3 | 24 | |
| 26 Jun 2025 | 3.4 | 15.5 | 18.1 | 41 | |
| 27 Jun 2025 | 1.3 | 14.4 | 21.8 | 33 | |
| 28 Jun 2025 | 2.1 | 17.6 | 21.5 | 35 | |
| 29 Jun 2025 | 0.2 | 17.5 | 23.1 | 25 | |
| 30 Jun 2025 | 0.0 | 14.6 | 26.9 | 23 |
6 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