Weather delay tool
Weather record

Construction weather in London, June 2025

Daily rainfall, frost and wind for London against the 10-year average — the starting point for any weather delay conversation on site.

Weather delay record

London — 1 Jun 2025 to 30 Jun 2025

EC1A 1BB · 1 Jun 2025 – 30 Jun 2025

Rainfall over this period was 65% 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

65%

41 mm vs 62 mm typical

Rain days >5mm

2

typical: 3.8

Frost days

0

typical: 0.0

High-wind days

0

gusts ≥ 47 mph

Daily record

DateRain (mm)Min °CMax °CGust (mph)Flags
1 Jun 20250.014.121.534
2 Jun 20250.412.421.826
3 Jun 20253.711.817.441
4 Jun 20250.110.518.129
5 Jun 20259.212.516.734wet
6 Jun 20250.910.918.931
7 Jun 202513.511.217.628wet
8 Jun 20250.09.217.128
9 Jun 20250.010.919.825
10 Jun 20250.213.122.029
11 Jun 20250.212.823.225
12 Jun 20250.814.225.026
13 Jun 20250.616.628.622
14 Jun 20254.616.323.532
15 Jun 20250.213.223.526
16 Jun 20250.014.727.322
17 Jun 20250.015.426.821
18 Jun 20250.015.928.817
19 Jun 20250.018.932.028
20 Jun 20250.017.528.821
21 Jun 20250.018.431.521
22 Jun 20250.017.626.837
23 Jun 20250.416.222.732
24 Jun 20250.314.124.434
25 Jun 20250.016.427.419
26 Jun 20253.717.524.136
27 Jun 20251.813.826.932
28 Jun 20250.118.530.128
29 Jun 20250.018.129.822
30 Jun 20250.018.731.921

2 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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