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Krabi, Thailand · Equatorial tropical

Krabi in September: go or not?

Mixed period. Krabi in September: 4.9/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 8.09°N · 98.91°E
⚡ This month's verdict
Why not
Krabi · September
4.9
24–30°
Temperature
49%
Rain
5h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Ivan Nedelchev via Unsplash
The month in detail

What to expect in September

In September, Krabi sees 30°C during the day with 4.8h of sunshine per day. With 49% of rainy days, always have indoor alternatives planned.

September ranks 7 out of 12 months in Krabi. Compared to August: 8 pts more rainy days.

This month's conditions

What it's like in September

UV index
7 · high
sunscreen and hat advised
Feels like
very humid
24°
Sea
30°C
warm, ideal
Daylight
12.0h of daylight
Air quality
excellent
AQI 19
Compare

Is September the right month?

The best month in Krabi is January (5.5/10), 0.6 pt higher than September.

See January →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Krabi

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Thailand

🗣️LanguageThai
💶CurrencyThai Baht (฿)
🚗DrivingLeft-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeEquatorial tropical
📈Climate trend ⓘStable
🔥Hottest monthMarch · 34°C
❄️Coolest monthJune · 30°C
🌧️Rainiest month ⓘOctober · 62%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘNone (equator)
Location

Where is Krabi ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Thailand
Equatorial tropical climate with a 5.5 → 4.5 gap between best and worst month. 10 years of ERA5 data to choose by project.
8.09°N · 98.91°E
Questions

Frequently asked questions

What is the best time to visit Krabi?
January is the best month with 31.0°C highs, 22.0°C lows, 6.4h of sunshine and 21.0% rainy days.
How many hours of sunshine does Krabi get in January?
Krabi averages 6.4 sunshine hours per day in January. It is the sunniest month with a climate score of 5.3/10.
What is the rainiest month in Krabi?
October is the most unfavourable month with October has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Krabi in January?
In January, overnight lows reach 22.0°C, while afternoon highs average 31.0°C.
Is Krabi good in winter?
In winter (December-February), Krabi scores 5.2/10 on average — Difficult period — prefer the peak season.. The best month overall remains January with a score of 5.3/10.
When should you avoid Krabi?
October is the most difficult month to visit Krabi, with October has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Krabi in September?
In September, the sea averages 30°C in Krabi: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Krabi in September?
The average UV index reaches 7 in September in Krabi (high), with about 12.0h of daylight. Sunscreen and hat advised.