March 18 is statistically one of the best days of the year in Chiang Mai. With minimal rain risk (9%) and pleasant highs of 35°C, it's ideal for outdoor adventures. Expect a bustling atmosphere in Chiang Mai right now—this is when the city truly comes alive with visitors.
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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 March 18
"Warm & Sunny. Expect average highs of 34.6°C. 9% chance of rain."
What to Wear in Chiang Mai in March
Based on historical data for March 18, Chiang Mai typically experiences temperatures between 21.9°C and 34.6°C. We recommend packing t-shirt, light clothing, layers (onion system) to stay comfortable. Trends suggest it will stay mostly dry (9% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Chiang Mai
Smart Suitcase
- T-Shirt
- Light Clothing
- Layers (Onion System)
Average High
34.6°C
Daytime Peak
Average Low
21.9°C
Nighttime Low
Feels Like
40.5°C
🔥 Heat index effect
Rain Chance
9%
Avg 0.1mm if it rains
Cloud Cover
26%
Overcast
Pressure
1009.3 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
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 17 min to burn
Type III-IV
🟡 26 min to burn
Type V-VI
🟢 43 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
23.3°C
Humid/Sticky
Heat Index
40.5°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
High
92/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~97
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Chiang Mai
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:31
☀️ Noon
12:33
🌇 Sunset
18:35
⏱️ Daylight
12h 3m
Wind Speed
9 km/h
Light breeze
Sunshine
10.7 hrs
Direct Sun (Cloud-free)
Humidity
52%
Comfortable
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
☀️ Excellent
Tourist Crowds
🟢 Moderate
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 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 March 18 averages 34.6°C with a 9% precipitation probability. Wedding/Outdoor Event Score: 95/100."
— 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
March 11
33.8°C • 7% rain
Score
98
March 12
34°C • 6% rain
Score
97
March 13
34.1°C • 6% rain
Score
97
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (March 18) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Chiang Mai Worth Visiting on March 18?
Planning a trip to Chiang Mai on March 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 34.6°C with a 9% historical precipitation risk.
✈️ Travel Logistics: Approximately 97 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 March 18 recorded in the last 30 years saw temperatures hit 37.7°C in 2016, while the coldest dropped to 20.3°C in 2019.