June 21 sees frequent showers in Chiang Mai. Historical data shows a 50% chance of rain, so pack accordingly. Temperatures average 31°C. Lower tourist interest in Chiang Mai right now translates to better deals and a more local feel.
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Essential Travel Info for Chiang Mai
Currency
THB
฿ Thai baht
Language
Thai
Driving
Left side
Connect
Many guesthouses, hotels, cafes, bars, r...
Safety
Moderate Safety
GPI: 2.098
Chiang Mai Weather Forecast for June 21
"Warm & Sunny. Expect average highs of 31.3°C. 50% chance of rain."
What to Wear in Chiang Mai in June
Based on historical data for June 21, Chiang Mai typically experiences temperatures between 24.1°C and 31.3°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 50% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Chiang Mai
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
31.3°C
Daytime Peak
Average Low
24.1°C
Nighttime Low
Feels Like
41.5°C
🔥 Heat index effect
Rain Chance
50%
Avg 3.2mm if it rains
Cloud Cover
91%
Light drizzle
Pressure
1005.7 hPa
Low volatility
Chiang Mai 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 recommended
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
27.2°C
Humid/Sticky
Heat Index
41.5°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Thailand
Flight Traffic
Quiet
24/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~25
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Chiang Mai
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:49
☀️ Noon
12:26
🌇 Sunset
19:04
⏱️ Daylight
13h 15m
Wind Speed
10.5 km/h
Light breeze
Sunshine
9.4 hrs
Direct Sun (Cloud-free)
Humidity
79%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Chiang Mai
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Chiang Mai
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🔴 Very 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.
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, Chiang Mai on June 21 averages 31.3°C with a 50% precipitation probability. Wedding/Outdoor Event Score: 71/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Chiang Mai 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 (June 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Chiang Mai Worth Visiting on June 21?
Planning a trip to Chiang Mai on June 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 31.3°C with a 50% historical precipitation risk.
✈️ Travel Logistics: Approximately 25 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 11 vaccinations are recommended for Thailand, including COVID-19.
📊 Historical Extremes: The hottest June 21 recorded in the last 30 years saw temperatures hit 33.4°C in 2020, while the coldest dropped to 23.1°C in 2019.