The most recent edition on this page is dated May 31, 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
Rock 'n' Roll San Diego Marathon
Sunday, May 31, 2026San Diego, California, USA
Goal time
3:15:00
Adjusted time (preview)
About 264 m of climbing and 337 m of descent. Hilly.
79% within 2%3% over 6%6 climbs
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 06:15 start hour. Typical late-May air averages 16°C (about 14°C to 20°C in that window). The bands are that history, not a forecast range. Hover or drag to explore.
Race-morning temperature
Most mornings
15-17°C
Almost all
14-18°C
Humidity
81%
Dew
13°C
WBGT
14°C
16°CAverage
06:15-09:33
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.
SSE
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.
Related races
Same city, region or country, when we can resolve them. World majors also point to each other.
- Big Sur International Marathon
- California International Marathon (CIM)
- IRONMAN California
- Long Beach Marathon
- Los Angeles Marathon
- Mountains 2 Beach Marathon
- Napa Valley Marathon
- San Francisco 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 Rock 'n' Roll San Diego Marathon.
Pacing, splits, and race-day strategy personalised to your fitness and this course.
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