When is the best day for a trail run in Johannesburg?
This week's answer
🏃 Thursday, 13 Aug is the best day to trail run in Johannesburg this week, scoring 100/100.
Thursday through Sunday are your window—all four days score perfect 100s with zero to negligible rain and winds under 15 km/h. Monday and Tuesday are washouts with near-certain rain and temperatures bottoming at 5°C; Wednesday could work as a backup with 83/100 conditions, though 47% rain risk lingers.
The week, scored for trail run
Day by day
Tap any day for the factor breakdown — temperature, dryness, wind and sky, each scored out of 100.
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Local know-how
Runners handle more weather than most, but heat is the real enemy — the best running days are cool, dry-ish and calm.
- ◆Above 25° your pace lies to you — slow down and carry water.
- ◆Light drizzle is fine underfoot on most SA trails; storm cells are not.
Questions people ask
When is the best day for a trail run in Johannesburg this week?
Thursday, 13 Aug is the best day to trail run in Johannesburg this week, scoring 100/100.
What temperature is too hot for running?
Performance drops measurably above about 20°; above 28–30° heat stress becomes a genuine risk for longer efforts. Run at dawn on hot days.