The world's largest women-only race, a 10K over the parkland of Gärdet and Djurgården. Midday in early September is usually cool and pleasant, with a chance of showers.
Plan for about 63°F (17°C) at the 12:00 start, feeling like 61°F (16°C), with 70% humidity and 7 mph wind, warming to roughly 64°F (18°C) by the finish. It rained on 4 of the last 10 race days. Wear: Short Sleeve Tech Shirt, Running Shorts, Running Cap, Waterproof Jacket.
Feels like 61°F (16°C) at the start · finish 64°F (18°C) · rain 4 of 10 · start air from 50°F (10°C) to 75°F (24°C)
Conditions at the 12:00 start on the race's usual date each year (usually the first Saturday 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 | 69°F (21°C) | 71°F | 70°F | 75% | 5 mph | 0.06 in | Overcast |
| 2024 | 75°F (24°C) | 77°F | 76°F | 62% | 5 mph | – | Mostly clear |
| 2023 | 61°F (16°C) | 59°F | 61°F | 77% | 5 mph | – | Drizzle |
| 2022 | 50°F (10°C) | 49°F | 54°F | 82% | 1 mph | – | Drizzle |
| 2021 | 57°F (14°C) | 50°F | 57°F | 48% | 10 mph | – | Mostly clear |
| 2020 | 65°F (18°C) | 60°F | 65°F | 51% | 10 mph | – | Mostly clear |
| 2019 | 61°F (16°C) | 58°F | 63°F | 82% | 11 mph | 0.10 in | Drizzle |
| 2018 | 67°F (19°C) | 64°F | 67°F | 66% | 10 mph | – | Drizzle |
| 2017 | 61°F (16°C) | 59°F | 61°F | 72% | 6 mph | 0.07 in | Overcast |
| 2016 | 62°F (17°C) | 62°F | 64°F | 88% | 8 mph | 0.19 in | Drizzle |
Coldest start: 50°F (10°C) in 2022. Warmest: 75°F (24°C) in 2024. Wettest: 0.19 in in 2016.
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
Fast-drying micromesh tee for warm-weather miles
$75
✓ Worn by the author
Packable, washable running cap with a short brim
$55
The gold standard short sleeve for everyday running
$85
✓ 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 61°F (16°C)) with 70% humidity and 7 mph wind, warming to about 64°F (18°C) by the finish. It rained measurably on 4 of those 10 race days. The coldest start was 50°F (10°C) in 2022; the warmest was 75°F (24°C) in 2024.
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 Tjejmilen is usually held on usually the first Saturday of September. The next expected date is Saturday, September 4, 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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