Oslo Marathon

This edition is listed as Marathon in Oslo, Norway.

Typical race-morning air at Oslo Marathon averages 14°C across the last 10 years (about 11°C to 19°C in that window). The morning can still warm as you run. The stickiest morning in that set was 2023, WBGT around 16°C. 2018 was the windiest, around 19 km/h. Use that range for planning, not as a promise for race day.

2023 (16 Sep 2023) was the hottest Oslo Marathon morning in that set, WBGT around 16°C. Treat that year as the spike, not as the usual morning.

2018 (15 Sep 2018) was the windiest Oslo Marathon morning in that set, around 19 km/h. Wind still changes what the same pace costs. Treat that year as the spike, not as the usual morning.

The next edition date is not locked here yet. Plan the 2027 Oslo Marathon from the historical race-morning weather on this page until that date is published. Typical race-morning air averages 14°C.

Heat, humidity, wind or a lumpier day than you hoped all raise the chance of a late fade. If the start feels easy, don't spend it. Back off early, and hold even effort even if that means slower than the A-goal. The preview on this page is the starting point. Full personalised splits sit in Race Pass or Pro.

About 215 m of climbing and 214 m of descent. Hilly. About 86% sits within 2%. About 1% of the course is steeper than 6%. Four climbs.

It is an estimate of how the course and conditions could move your baseline. Your body still decides the rest: heat adaptation, fuelling, prep, mindset, how you race, and whether you can draft.

The free page covers conditions, course context and a finish preview. Full personalised pacing and weather-adjusted splits sit in Race Pass or Pro.