Weather: Zanzibar Marathon
Typical climate in September (an estimate, not measured race-day data). Use it to plan your race strategy, clothing, and hydration.
Typical climate for the race month — an estimate, not a forecast or a race-day record
28°C
Temperature
Range: 24°C – 32°C
78%
Humidity
High — increase hydration
65%
Rain Chance
Rain is likely — prepare gear
September
Typical race month
Usually on a Sunday
Conditions
September, when the 2026 edition was held, falls in Zanzibar's longer dry season: highs average about 30°C, lows about 21°C, with rain on around five days. November, when the 2025 edition ran, is wetter, with highs near 31°C, lows near 23°C and rain on about 14 days.
What to Wear
Light cap or visor
Shield from sun and heat
Sunscreen SPF 30+
28°C means sun exposure risk
Extra hydration plan
Increase fluid intake in heat
Hat with brim
Keep rain out of your eyes
Anti-chafe cream
Wet conditions increase chafing risk
Hydration Strategy
Before the Race
Hydrate aggressively in the 24 hours before. Aim for clear urine the morning of the race.
During the Race
Take water at every aid station. Consider sports drink for electrolytes. Don't wait until you're thirsty.
After the Race
Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.
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