Thailand Krabi Weather in May — Climate Guide
May in Krabi is moderate
Krabi Weather in May — Quick Answer
As of 2026- Avg temp
- 33° / 25°
- Rainfall
- 280mm · 18 days
- Crowds
- Moderate
As of 2026, Krabi in May averages a high of 33°C and low of 25°C with 280mm of rain over about 18 days. Hot + humid + rainy. Quick-dry fabrics over cotton. Packable rain jacket essential. Reef-safe sunscreen SPF 50 (sun still strong between storms). Closed-toe shoes for muddy temple paths.
May is moderate for Krabi.
May is the transition month — first half (May 1-14) still mostly dry with shoulder pricing; second half brings the southwest monsoon onset and daily afternoon thunderstorms. Some Phi Phi and outer-island longtail routes operate on reduced schedules from May 15 through September.
Pattern after May 15: clear mornings (7-13:00) → afternoon thunderstorms (14-17:00) → clearing evenings. Schedule Phi Phi morning departures, indoor activities (spa, Krabi Town heritage walking) in afternoons, sunset Phra Nang dinners. Phi Phi tours run with 60-70% reliability post-May 15.
Travel score
Monsoon transition — last dry-season prices + first afternoon storms
May Weather at a Glance
May averages 91°F / 33°C highs and 77°F / 25°C lows with 18 rainy days and 280mm rainfall — rainy days double from April. Humidity climbs to 82%. UV 11 (sun still strong between storms). Sea 29°C very warm. Sunshine drops to 7 hours. First half of month still mostly dry; second half brings true monsoon pattern.
May Travel Advice
Pre-book Phi Phi early-morning departures (7-8 AM) — afternoon tours cancellation-prone. Krabi Hot Springs + Emerald Pool jungle tours operate year-round with better reliability than Phi Phi. May 16-31 = year's best mid-range hotel value. Travel insurance with cancellation coverage strongly recommended.
Flying In from Overseas
Monsoon onset = drop in tourist arrivals (regional vacationers know to avoid). Direct flights from Bangkok $50-100 (year's lowest), Singapore $100-200, Kuala Lumpur $80-180. Western shoulder season. Honeymooners drop off; flashpackers and budget travelers pick up. Korean Golden Week (early May) brief regional bump.
May Pricing Trends
Monsoon shoulder pricing: Ao Nang 4-star $50-120/night, Klong Muang luxury $150-350, Rayavadee $500-1,200. Phi Phi day tour $35-55. Year's most affordable mid-range stays start mid-May. Flights from BKK $50-100.
Krabi May Weather Stats
Avg High
33°C
Avg Low
25°C
Rainy Days
18
280mm total
Sunshine
7h
Daily avg
Humidity
82%
high
UV Index
11
Extreme
Wind
14 km/h
Gusts 30
Sea Temp
29°C
swimming rough
Crowds
Moderate
At attractions
May Sunrise & Sunset
Air Quality
PM2.5
12 μg/m³
PM10
22 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
36°C
Nighttime
27°C
Humidity and wind affect how the actual temperature feels.
Wind
14 km/h
Max gust 30 km/h
Activities Recommended for May
May Travel Pros & Cons
Pros
- Hotels 30-40% off peak
- Less crowded than dry season
- Lush green jungle landscapes
- Post-May 15 value window
Cons
- Monsoon starts mid-month
- Some longtail routes reduced
- Afternoon thunderstorms daily
- Phi Phi cancellation risk rises
May Events & Festivals
- Southwest monsoon starts mid-month
- Some longtail boat routes reduced
- Vesak Buddha Day (mid-May)
Krabi in May — Full Picture
May is the transition month — first half (May 1-14) still mostly dry with shoulder pricing; second half brings the southwest monsoon onset and daily afternoon thunderstorms. Some Phi Phi and outer-island longtail routes operate on reduced schedules from May 15 through September.
Pattern after May 15: clear mornings (7-13:00) → afternoon thunderstorms (14-17:00) → clearing evenings. Schedule Phi Phi morning departures, indoor activities (spa, Krabi Town heritage walking) in afternoons, sunset Phra Nang dinners. Phi Phi tours run with 60-70% reliability post-May 15.
Hotel pricing drops 30-40% from peak — May 16-31 is excellent value if you can work around the rain. Klong Muang + Tubkaek family resorts especially affordable. Beach swimming OK on protected days; Railay West gets occasional red flags.
What to Wear & What to Pack
Hot + humid + rainy. Quick-dry fabrics over cotton. Packable rain jacket essential. Reef-safe sunscreen SPF 50 (sun still strong between storms). Closed-toe shoes for muddy temple paths.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current33.7°C
25°C
11.3/mo
Summer (Jun·Jul·Aug)
32°C
25°C
18/mo
Autumn (Sep·Oct·Nov)
31.3°C
24°C
17.7/mo
Winter (Dec·Jan·Feb)
32°C
23.3°C
4.3/mo
Krabi Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 32° | 23° | 4d·35mm | 9h | 75% | 10 | Very busy | Peak |
| February (Best) | 33° | 24° | 3d·25mm | 10h | 72% | 11 | Very busy | Peak |
| March (Best) | 34° | 25° | 6d·70mm | 9h | 75% | 11 | Busy | Shoulder |
| 34° | 25° | 10d·130mm | 9h | 78% | 11 | Busy | Peak | |
| 33° | 25° | 18d·280mm | 7h | 82% | 11 | Moderate | Shoulder | |
| 32° | 25° | 17d·250mm | 7h | 80% | 10 | Moderate | Low season | |
| 32° | 25° | 18d·260mm | 6h | 80% | 10 | Busy | Shoulder | |
| 32° | 25° | 19d·290mm | 6h | 82% | 10 | Busy | Shoulder | |
| 31° | 24° | 20d·320mm | 5h | 84% | 9 | Quiet | Low season | |
| 31° | 24° | 18d·280mm | 6h | 82% | 9 | Moderate | Low season | |
| 32° | 24° | 15d·220mm | 7h | 78% | 9 | Busy | Shoulder | |
| December (Best) | 31° | 23° | 6d·60mm | 8h | 75% | 9 | Very busy | Peak |
View Other Months
Krabi May Hotel Picks
Frequently Asked Questions
Is May a good time to visit Krabi?
Krabi in May is moderate. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Krabi in May?
Krabi May averages a high of 33°C and a low of 25°C.
Does it rain much in Krabi in May?
Krabi May averages 280mm of rainfall over about 18 rainy days.
What should I wear in Krabi in May?
Hot + humid + rainy. Quick-dry fabrics over cotton. Packable rain jacket essential. Reef-safe sunscreen SPF 50 (sun still strong between storms). Closed-toe shoes for muddy temple paths.
What time are sunrise and sunset in Krabi in May?
Krabi May sunrise is 06:10 and sunset is 18:30, with 12h 20min of daylight.
What's the air quality like in Krabi in May?
Krabi May air quality (AQI) averages 35, rated Good. PM2.5 averages 12μg/m³.
What activities are recommended in Krabi in May?
In May, Krabi is great for Morning Phi Phi (May 1-14), Tiger Cave Temple, Krabi Hot Springs.
Is May peak season in Krabi?
Krabi May crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Krabi
View Other Months
Planning a May trip to Krabi?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.