May 21 is statistically one of the best days of the year in Mumbai. With minimal rain risk (13%) and pleasant highs of 33°C, it's ideal for outdoor adventures. As it's peak season for Mumbai, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Mumbai
Currency
INR
₹ Indian rupee
Language
English
+2 more
Driving
Left side
Connect
The area code for Mumbai is "22" (prefix...
Safety
Travel Precautions
GPI: 2.578
Mumbai Weather Forecast for May 21
"Warm & Sunny. Expect average highs of 32.6°C. 13% chance of rain."
What to Wear in Mumbai in May
Based on historical data for May 21, Mumbai typically experiences temperatures between 27.4°C and 32.6°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (13% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Mumbai
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
32.6°C
Daytime Peak
Average Low
27.4°C
Nighttime Low
Feels Like
44.3°C
🔥 Heat index effect
Rain Chance
13%
Avg 0.5mm if it rains
Cloud Cover
40%
Light drizzle
Pressure
1006.4 hPa
Low volatility
Mumbai Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30+ required, seek shade
06:00 - 10:00
16:00 - 19:00
Type I-II
🔴 11 min to burn
Type III-IV
🟡 17 min to burn
Type V-VI
🟢 28 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
27.6°C
Humid/Sticky
Heat Index
44.3°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
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 India
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~459
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Mumbai
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:33
☀️ Noon
13:06
🌇 Sunset
19:39
⏱️ Daylight
13h 5m
Wind Speed
19.5 km/h
Gentle breeze
Sunshine
11.4 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Mumbai
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 Mumbai
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.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Very unhealthy. Avoid outdoor activities. Wear N95 mask if you must go out.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
Cyclone Risk
Season: Apr - Dec
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Mumbai on May 21 averages 32.6°C with a 13% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Mumbai Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (May 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Mumbai Worth Visiting on May 21?
Planning a trip to Mumbai on May 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 32.6°C with a 13% historical precipitation risk.
✈️ Travel Logistics: Approximately 459 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 11 vaccinations are recommended for India, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 32.3°C (hot soup). Wave conditions are generally fun waves with heights around 0.91m.
📊 Historical Extremes: The hottest May 21 recorded in the last 30 years saw temperatures hit 35.5°C in 2024, while the coldest dropped to 25.9°C in 2019.