October 21 is generally a great time to visit Stone Town. While there is a slight chance of rain (24%), showers are usually brief. Expect comfortable 30°C weather. As it's peak season for Stone Town, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Stone Town
Currency
TZS
Sh Tanzanian shilling
Language
English
+1 more
Driving
Left side
Safety
Moderate Safety
GPI: 2.001
Stone Town Weather Forecast for October 21
"Warm & Sunny. Expect average highs of 29.9°C. 24% chance of rain."
What to Wear in Stone Town in October
Based on historical data for October 21, Stone Town typically experiences temperatures between 23.6°C and 29.9°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (24% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Stone Town
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
29.9°C
Daytime Peak
Average Low
23.6°C
Nighttime Low
Feels Like
36.3°C
🔥 Heat index effect
Rain Chance
24%
Avg 1.3mm if it rains
Cloud Cover
42%
Light drizzle
Pressure
1013.6 hPa
Low volatility
Stone Town Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
~ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30+ required, seek shade
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 13 min to burn
Type III-IV
🟡 20 min to burn
Type V-VI
🟢 33 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
25.2°C
Humid/Sticky
Heat Index
36.3°C
Feels hotter
😕 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Tanzania
Flight Traffic
High
90/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~82
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Stone Town
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:01
☀️ Noon
12:09
🌇 Sunset
18:17
⏱️ Daylight
12h 16m
Wind Speed
17.3 km/h
Gentle breeze
Sunshine
11.1 hrs
Direct Sun (Cloud-free)
Humidity
76%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Stone Town
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Stone Town
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Stone Town on October 21 averages 29.9°C with a 24% precipitation probability. Wedding/Outdoor Event Score: 92/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Stone Town Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
October 14
29.8°C • 16% rain
Score
95
October 15
29.8°C • 17% rain
Score
94
October 16
29.8°C • 18% rain
Score
94
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 21) in other destinations
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📍 Is Stone Town Worth Visiting on October 21?
Planning a trip to Stone Town on October 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.9°C with a 24% historical precipitation risk.
✈️ Travel Logistics: Approximately 82 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for Tanzania, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 27.5°C (tropical bath). Wave conditions are generally lake-like with heights around 0.34m.
📊 Historical Extremes: The hottest October 21 recorded in the last 30 years saw temperatures hit 31.8°C in 2024, while the coldest dropped to 21.5°C in 2022.