Krabi in September
In September, Krabi averages 29°C (85°F) during the day and 24°C (76°F) at night, with frequent rain — about 29 days of the month see precipitation (250 mm total).
ShoulderConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
September offers comfortable temperatures in Krabi, with some rain to plan around.
How September compares to the rest of the year in Krabi
September is one of the coolest months in Krabi (12th of 12) and moderately rainy compared to the rest of the year (7th of 12). Daytime temperature runs 1°C below the annual average (31°C). September runs roughly the same as August (29°C) and stays flat into October.
September sunrise & sunset in Krabi
Times shown for Krabi local time (Asia/Bangkok), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Krabi — September
Golden-hour and blue-hour windows for the 15th of September, in Krabi's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Krabi in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Krabi's popularity.
Crowds & pricing — September in Krabi
Krabi is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — September in Krabi
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in Krabi — September
Across the year Krabi's sea swings from 29.1°C (January) to 32.1°C (May) — September sits at 29.8°C.
Krabi in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 31°C / 87°F | 23°C / 73°F | 76 mm | 21 | — |
| February | 33°C / 91°F | 23°C / 73°F | 43 mm | 16 | — |
| March | 34°C / 93°F | 24°C / 75°F | 69 mm | 21 | — |
| April | 32°C / 90°F | 25°C / 76°F | 160 mm | 28 | — |
| May | 31°C / 87°F | 25°C / 77°F | 234 mm | 30 | — |
| June | 30°C / 86°F | 25°C / 77°F | 195 mm | 29 | — |
| July | 30°C / 85°F | 25°C / 77°F | 218 mm | 29 | — |
| August | 29°C / 85°F | 25°C / 76°F | 216 mm | 30 | — |
| September | 29°C / 85°F | 24°C / 76°F | 250 mm | 29 | — |
| October | 29°C / 85°F | 24°C / 75°F | 320 mm | 30 | — |
| November | 29°C / 85°F | 24°C / 74°F | 271 mm | 30 | — |
| December | 30°C / 85°F | 23°C / 73°F | 142 mm | 23 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Krabi in September →
Frequently asked questions
How hot is Krabi in September?
In September, Krabi averages a high of 29°C (85°F) and a low of 24°C (76°F) — generally warm.
Does it rain a lot in Krabi in September?
September is quite rainy in Krabi, with about 29 rainy days on average.
Is September a good time to visit Krabi?
September is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Krabi in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full September packing list for Krabi for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.