The world's biggest half marathon, from Newcastle over the Tyne Bridge to the coast at South Shields. Late-morning September starts are mild, but a North Sea headwind on the final mile is common.
Plan for about 63°F (17°C) at the 11:00 start, feeling like 60°F (16°C), with 70% humidity and 10 mph wind, warming to roughly 64°F (18°C) by the finish. It rained on 5 of the last 10 race days. Wear: Short Sleeve Tech Shirt, Running Shorts, Running Cap, Waterproof Jacket.
Feels like 60°F (16°C) at the start · finish 64°F (18°C) · rain 5 of 10 · start air from 59°F (15°C) to 71°F (22°C)
Conditions at the 11:00 start on the race's usual date each year (usually the second Sunday of September). Years when the race was cancelled or moved still show that date's weather. Source: Open-Meteo ERA5 archive.
Bar: air temperature from start to finish · dot: feels-like effective temperature · ≫ windy (15+ mph) · rain · shaded: PR band 40–50°F
| Year | Start temp | Feels like | Finish | Humidity | Wind | Rain | Sky |
|---|---|---|---|---|---|---|---|
| 2025 | 60°F (16°C) | 56°F | 60°F | 64% | 10 mph | 0.25 in | Overcast |
| 2024 | 61°F (16°C) | 62°F | 62°F | 94% | 7 mph | 0.37 in | Drizzle |
| 2023 | 71°F (22°C) | 74°F | 74°F | 79% | 5 mph | – | Overcast |
| 2022 | 65°F (18°C) | 63°F | 66°F | 73% | 9 mph | 0.46 in | Overcast |
| 2021 | 60°F (16°C) | 57°F | 60°F | 68% | 7 mph | – | Overcast |
| 2020 | 67°F (19°C) | 61°F | 69°F | 65% | 19 mph | 0.05 in | Overcast |
| 2019 | 59°F (15°C) | 57°F | 62°F | 62% | 2 mph | – | Overcast |
| 2018 | 65°F (18°C) | 60°F | 66°F | 67% | 15 mph | – | Drizzle |
| 2017 | 59°F (15°C) | 51°F | 60°F | 72% | 17 mph | 0.06 in | Mostly clear |
| 2016 | 63°F (17°C) | 57°F | 64°F | 58% | 13 mph | – | Mostly clear |
Coldest start: 59°F (15°C) in 2019. Warmest: 71°F (22°C) in 2023. Wettest: 0.46 in in 2022.
The time estimates apply published temperature–performance curves to this race's ten-year weather history. Performance peaks at an effective race temperature of roughly 40 to 50°F and degrades faster the warmer it gets and the slower you run (Ely et al., 2007; El Helou et al., 2012). Wind adds a cost that grows with the square of the wind speed (Pugh, 1971), split into head and tail components on point-to-point courses. Shorter races are penalised less. This is a model, not a prediction; your training and the course matter more.
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Built from the 10-year average start conditions by the same engine as the live tool. Treat optional items as corral-only layers you can shed.
Short Sleeve Tech Shirt
Breathable running tee
Waterproof Jacket
Breathable rain protection
Running Shorts
Lightweight with built-in brief
Running Cap
Keep rain out of eyes
Trail or Waterproof Shoes
Better grip and water resistance
✓ Worn by the author
Compression tight for 40 to 55°F, works under shorts
$78
✓ Worn by the author
Fast-drying micromesh tee for warm-weather miles
$75
Packable wind shell for cool morning miles
$115
✓ Worn by the author
Thin, ribbed quarter sock that keeps grit out
$36
Water-resistant, reef-safe — non-negotiable for outdoor runs
$16
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Over 2016 to 2025 the start averaged 63°F (17°C) (feels like 60°F (16°C)) with 70% humidity and 10 mph wind, warming to about 64°F (18°C) by the finish. It rained measurably on 5 of those 10 race days. The coldest start was 59°F (15°C) in 2019; the warmest was 71°F (22°C) in 2023.
For a typical 63°F (17°C) start: Short Sleeve Tech Shirt, Running Shorts, Running Cap, Waterproof Jacket. Dress for about 15°F warmer than the start temperature, since the race itself adds that much, and plan to shed anything you only need in the corral.
The AJ Bell Great North Run is usually held on usually the second Sunday of September. The next expected date is Sunday, September 12, 2027. Confirm on the official site, since dates occasionally move.
The live forecast on this page comes from Open-Meteo and unlocks 16 days before the race. Forecasts inside 7 days are reliable for temperature within a few degrees; rain timing firms up in the last 2 to 3 days. Until then, the 10-year history above is the best planning guide.
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