May 18 is generally a great time to visit Arusha. While there is a slight chance of rain (28%), showers are usually brief. Expect comfortable 23°C weather. As it's peak season for Arusha, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Arusha
Currency
TZS
Sh Tanzanian shilling
Language
English
+1 more
Driving
Left side
Safety
Moderate Safety
GPI: 2.001
Arusha Weather Forecast for May 18
"Mild & Comfortable. Expect average highs of 23.1°C. 28% chance of rain."
What to Wear in Arusha in May
Based on historical data for May 18, Arusha typically experiences temperatures between 15.7°C and 23.1°C. We recommend packing t-shirt, light clothing to stay comfortable. With a 28% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Arusha
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
23.1°C
Daytime Peak
Average Low
15.7°C
Nighttime Low
Feels Like
23.7°C
☀️ Feels accurate
Rain Chance
28%
Avg 1.4mm if it rains
Cloud Cover
68%
Light drizzle
Pressure
1016.9 hPa
Low volatility
Arusha Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 94% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 160 min to burn
Type III-IV
🟡 240 min to burn
Type V-VI
🟢 400 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
19°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Tanzania
Flight Traffic
High
88/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~45
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Arusha
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:32
☀️ Noon
12:31
🌇 Sunset
18:29
⏱️ Daylight
11h 57m
Wind Speed
14 km/h
Gentle breeze
Sunshine
10.1 hrs
Direct Sun (Cloud-free)
Humidity
78%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Arusha
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Arusha
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
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
Moderate seismic activity. Occasional tremors possible.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Arusha on May 18 averages 23.1°C with a 28% precipitation probability. Wedding/Outdoor Event Score: 95/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Arusha Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 18) in other destinations
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📍 Is Arusha Worth Visiting on May 18?
Planning a trip to Arusha on May 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 23.1°C with a 28% historical precipitation risk.
✈️ Travel Logistics: Approximately 45 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for Tanzania, including COVID-19.
📊 Historical Extremes: The hottest May 18 recorded in the last 30 years saw temperatures hit 25.2°C in 2024, while the coldest dropped to 14.9°C in 2020.