Weather delay tool
Weather record

Construction weather in Belfast, July 2026

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

Weather delay record

Belfast — 1 Jul 2026 to 31 Jul 2026

BT1 5GS · 1 Jul 2026 – 31 Jul 2026

Rainfall over this period was 30% 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

30%

29 mm vs 96 mm typical

Rain days >5mm

1

typical: 6.5

Frost days

0

typical: 0.0

High-wind days

0

gusts ≥ 47 mph

Daily record

DateRain (mm)Min °CMax °CGust (mph)Flags
1 Jul 20266.212.917.137wet
2 Jul 20260.212.717.345
3 Jul 20261.911.117.129
4 Jul 20261.415.319.738
5 Jul 20260.914.520.428
6 Jul 20260.214.921.832
7 Jul 20260.014.723.630
8 Jul 20260.014.827.121
9 Jul 20260.014.824.414
10 Jul 20260.015.324.622
11 Jul 20260.014.922.224
12 Jul 20260.016.424.626
13 Jul 20260.014.422.324
14 Jul 20260.013.922.621
15 Jul 20260.014.823.921
16 Jul 20260.015.525.617
17 Jul 20260.014.525.221
18 Jul 20260.013.320.227
19 Jul 20260.011.022.320
20 Jul 20260.012.620.723
21 Jul 20260.013.319.325
22 Jul 20260.012.921.728
23 Jul 20260.014.020.924
24 Jul 20260.314.023.330
25 Jul 20262.913.919.938
26 Jul 20262.814.418.334
27 Jul 20262.713.220.928
28 Jul 20263.218.023.536
29 Jul 20264.112.919.621
30 Jul 20260.811.117.425
31 Jul 20261.29.117.324

1 day 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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