Weather delay tool
Weather record

Construction weather in Brighton, September 2024

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

Weather delay record

Brighton — 1 Sept 2024 to 30 Sept 2024

BN1 1UG · 1 Sept 2024 – 30 Sept 2024

Rainfall over this period was 183% of the 10-year average for the same calendar window at this location. Conditions were materially wetter than typical for the time of year. 1 day had gusts at or above 47 mph.

Rainfall vs 10-yr avg

183%

141 mm vs 77 mm typical

Rain days >5mm

9

typical: 4.9

Frost days

0

typical: 0.0

High-wind days

1

gusts ≥ 47 mph

Daily record

DateRain (mm)Min °CMax °CGust (mph)Flags
1 Sept 20245.616.526.626wet
2 Sept 20243.317.919.928
3 Sept 20243.216.620.227
4 Sept 20241.613.119.515
5 Sept 202420.013.920.137wet
6 Sept 20249.514.717.222wet
7 Sept 20244.213.020.515
8 Sept 20246.314.517.825wet
9 Sept 20240.012.617.231
10 Sept 20243.411.218.441
11 Sept 20240.39.214.830
12 Sept 20242.67.414.725
13 Sept 20240.06.415.618
14 Sept 20240.06.516.117
15 Sept 20240.010.817.523
16 Sept 20240.112.719.220
17 Sept 20240.010.619.433
18 Sept 20240.014.521.435
19 Sept 20240.015.523.031
20 Sept 20240.815.021.831
21 Sept 20240.114.922.123
22 Sept 20244.915.219.025
23 Sept 202418.115.317.434wet
24 Sept 20244.813.216.821
25 Sept 202410.112.016.329wet
26 Sept 202417.012.316.254wet · wind
27 Sept 20246.58.212.343wet
28 Sept 20240.05.413.517
29 Sept 20242.69.913.944
30 Sept 202416.311.816.144wet

9 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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