Weather delay tool
Weather record

Construction weather in Cardiff, July 2026

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

Cardiff — 1 Jul 2026 to 31 Jul 2026

CF10 1EP · 1 Jul 2026 – 31 Jul 2026

Rainfall over this period was 7% of the 10-year average for the same calendar window at this location. Conditions were drier than typical for the time of year.

Rainfall vs 10-yr avg

7%

5 mm vs 67 mm typical

Rain days >5mm

0

typical: 4.1

Frost days

0

typical: 0.0

High-wind days

0

gusts ≥ 47 mph

Daily record

DateRain (mm)Min °CMax °CGust (mph)Flags
1 Jul 20260.114.320.035
2 Jul 20261.515.222.341
3 Jul 20260.010.921.633
4 Jul 20260.016.520.138
5 Jul 20260.016.221.130
6 Jul 20260.015.322.429
7 Jul 20260.015.922.428
8 Jul 20260.013.327.122
9 Jul 20260.014.925.715
10 Jul 20260.019.930.816
11 Jul 20260.020.631.126
12 Jul 20260.017.329.737
13 Jul 20260.015.426.441
14 Jul 20260.015.426.333
15 Jul 20260.016.527.434
16 Jul 20260.016.628.626
17 Jul 20260.018.027.028
18 Jul 20260.616.625.024
19 Jul 20260.116.622.224
20 Jul 20260.014.122.923
21 Jul 20260.015.724.621
22 Jul 20260.014.223.220
23 Jul 20260.016.124.819
24 Jul 20260.015.724.725
25 Jul 20260.012.821.539
26 Jul 20261.618.222.134
27 Jul 20260.114.221.133
28 Jul 20260.018.224.224
29 Jul 20260.015.924.330
30 Jul 20260.515.822.825
31 Jul 20260.011.021.336

0 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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