Midnight Sun Marathon
Race Day Weather
Cool temps, manageable wind, cautious hydration
Runners will face a steady temperature trend starting at 51°F and dropping slightly to 49°F. Light winds from the north will provide a crosswind at mile 1, with tailwinds aiding from miles 2 to 9. Given the humidity at 75%, it's advisable for runners to adjust their pace conservatively. Hydration should be prioritized, especially during the tougher headwind segments from miles 12 to 19.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Midnight Sun Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Midnight Sun Marathon race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
Race Info
The Midnight Sun Marathon is an annual 42.2 km road marathon in Tromsø, Norway, held each June near the summer solstice, when the sun stays above the horizon around the clock. The marathon starts at 8:30 PM local time so that most finishers cross the line after midnight while the sky remains bright. The course crosses the Tromsø Bridge twice and is certified by AIMS as the world's northernmost AIMS-certified marathon. First run in 1990, held every year except 2020 (COVID).