May 18 is generally a great time to visit Nairobi. While there is a slight chance of rain (23%), showers are usually brief. Expect comfortable 24°C weather. Nairobi is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Nairobi
Currency
KES
Sh Kenyan shilling
Language
English
+1 more
Driving
Left side
Connect
There are very many internet cafés aroun...
Safety
Moderate Safety
GPI: 2.303
Nairobi Weather Forecast for May 18
"Mild & Comfortable. Expect average highs of 23.7°C. 23% chance of rain."
What to Wear in Nairobi in May
Based on historical data for May 18, Nairobi typically experiences temperatures between 14.6°C and 23.7°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (23% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Nairobi
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
23.7°C
Daytime Peak
Average Low
14.6°C
Nighttime Low
Feels Like
24.3°C
☀️ Feels accurate
Rain Chance
23%
Avg 1.1mm if it rains
Cloud Cover
70%
Light drizzle
Pressure
1016.7 hPa
Low volatility
Nairobi Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 86% 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 Kenya
Flight Traffic
High
96/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~123
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nairobi
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:28
☀️ Noon
12:30
🌇 Sunset
18:32
⏱️ Daylight
12h 3m
Wind Speed
12.6 km/h
Gentle breeze
Sunshine
10.3 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nairobi
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Nairobi
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
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 acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Nairobi on May 18 averages 23.7°C with a 23% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nairobi Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
May 20
23.7°C • 19% rain
Score
98
May 21
23.8°C • 16% rain
Score
98
May 22
23.8°C • 17% rain
Score
98
💡 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 Nairobi Worth Visiting on May 18?
Planning a trip to Nairobi 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 23.7°C with a 23% historical precipitation risk.
✈️ Travel Logistics: Approximately 123 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 13 vaccinations are recommended for Kenya, including COVID-19.
📊 Historical Extremes: The hottest May 18 recorded in the last 30 years saw temperatures hit 26.5°C in 2024, while the coldest dropped to 14°C in 2020.