The most recent edition on this page is dated Sep 27, 2026. The next edition date is not locked here yet. Use the historical race-morning weather on this page for planning until the next date is published.
Marathon
Berlin Marathon
Sunday, September 27, 2026Berlin, Germany
Goal time
3:15:00
Adjusted time (preview)
Impacts
Based on the historical mean for the race window over the last 10 years, ±5 days.
Elevation
Heat
Wind
Total Impact
Race Pass: personalised finish time, adjusted splits, and your race-day pacing plan.
Race morning history
Last 10 years, around the 08:45 start hour. Typical late-September air averages 15°C (about 8°C to 22°C in that window). The bands are that history, not a forecast range. Hover or drag to explore.
Race-morning temperature
Most mornings
12-17°C
Almost all
10-19°C
Humidity
79%
Dew
11°C
WBGT
13°C
15°CAverage
08:45-12:03
Almost all (90%)Most mornings (70%)AverageRain
Year pills: green is favorable heat. Amber is moderate. Red is challenging.
Blue is most mornings. Dashed lines are the rare tails. Pink is the average. The bands are historical race mornings, not a forecast range. Blue columns are rain on the right scale. This assumes a 3:18. You can set your own time in the app.
Typical race-morning wind
Where the wind usually came from on race morning, not where it was going.
E
Most frequent (20%)
Wind speed
0-6 km/h
6-13 km/h
13-21 km/h
21+ km/h
Year pills: green is favorable wind. Amber is moderate. Red is challenging. Colours assume no drafting.
A start that feels cool is not a promise about the second half.
How this course changes your pace
Berlin gets called the fast major because the course is flat. The course is. The air is not always.
- Almost free on paper: flat, barely any elevation. Heat is what moves the finish time.
- Berlin 21 September 2025, about 09:15 start: about 20°C at the gun, about 25°C at the finish. For a 3:00 runner (70 kg, 178 cm) with no heat adaptation, heat impact was about +7:17. Already about +3:03 by halfway. An example at 3:00, not everyone's cost.
- 2026 was a week later, 27 September. 2025 is still the hot warning in this window, not the usual morning.
The usual late-September window
Last 10 years, roughly 22 September to 2 October, around the 09:15 start hour. This is the usual window, not a weather station for Sunday. The bands are historical race mornings, not a forecast range.
Ideal share 15% ≤10°CTypical ~15°C2025 ~20 to 25°C
- Only about 15% of those hours sit at 10°C or below (the ideal pile)
- Typical hour around 15°C
- Morning still warms as you run
- On a typical morning in that pile, heat costs the same 3:00 example about +2:44 with no adaptation
A cool start photo is not a promise about the second half.
Heat adaptation
Same 3:00 example, typical late-September morning, heat only.
| Adaptation | Heat impact |
|---|---|
| Not adapted | +2:44 |
| Standard heat training protocol | +0:43 |
| Extended heat training protocol | +0:13 |
Raising heat adaptation in MeteoPace cuts race-day heat cost. The full how-to, including CORE sensor context, lives in the insight.
The useful race plan:
- If the start feels easy, don't spend it.
- Expect heat to eat first-half pace while the air is still climbing.
- Holding even pace slower than the A-goal beats a late blow-up.
- If you are building heat adaptation, taper still wins late. CORE suggests no heat sessions in the last ~5 days. Full builds start about 3 weeks out.
Full autumn heat notes (and CORE partnership detail) in Hit Your Autumn Marathon Goals with MeteoPace and CORE.
Related races
Same city, region or country, when we can resolve them. World majors also point to each other.
- Berlin Half Marathon
- Boston Marathon
- Chicago Marathon
- London Marathon
- New York City Marathon
- Tokyo Marathon
- Cologne Marathon
- Dresden Marathon
View race map for this area.
Pacing and conditions FAQ
Beyond conditions
Conditions are only part of the race-day loss
Pacing mistakes often add several minutes, sometimes more than conditions alone, especially when the course and conditions are not ideal.
What your plan includes
Everything you need to turn this race preview into a usable race-day plan.
Personalized pacing
Effort and pace guidance tuned to this course profile.
Weather-adjusted splits
Split targets that account for heat, wind, and elevation.
Heat adaptation & drafting
Adjust for your heat tolerance and drafting preferences.
Get your personalised race plan for Berlin Marathon.
Pacing, splits, and race-day strategy personalised to your fitness and this course.
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