
Tromsø, Norway · Saturday 21 June 2025
Tromsø Midnight Sun Marathon, held on June 21, 2025, in Tromsø, Norway, is a unique event that takes place under the midnight sun. The course takes runners through the scenic landscapes of Tromsø, offering breathtaking views of the Arctic Ocean and surrounding mountains. With its well-organized logistics and enthusiastic support from the local community, this marathon is a must-do for those seeking a challenging yet enjoyable race experience amidst stunning natural beauty.\n\nThe event features
Adjusted Time
3:51:01
Time difference: -9.0 minutes compared to a flat, road, temperate course.
Tromsø Midnight Sun Marathon is a full marathon held in Tromsø, Norway, scheduled for Saturday 21 June 2025. The course is run on road surface with 69m of total elevation gain, reaching a maximum altitude of 17m above sea level. For registration and full race details, visit the official Tromsø Midnight Sun Marathon website.
This is a very flat course with only 69m of total elevation gain across the full distance. The course ranges from 0m to 17m above sea level — a 17m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Based on historical weather data for June, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 6°C to 13°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (0%), so dry conditions are likely.
Tromsø Midnight Sun Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Tromsø Midnight Sun Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Tromsø Midnight Sun Marathon against other marathons to find the right race for your goals.
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