January · Thailand
Best time to visit Koh Lanta in January Weather, crowds & prices
Weather in Koh Lanta in January
Average temperature 26°C, 68 mm of rain, about 20 days with 6+ hours of sunshine and 86% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
January score
8.4/10
Ranked #3 of 12 months
- Avg temp
- 26°C
- Rainfall
- 68 mm
- Humidity
- 86%
- Days with 6h+ sun
- 20
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
January in Koh Lanta scores 8.4/10 for beach and coastal travel - one of the top 12-month picks (#3). Expect around 26°C, 68 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Koh Lanta's quiet beaches and long sunsets suit families and travellers avoiding the crowds.
January holds up well in Koh Lanta — 3rd best month
January averages 26°C (79°F) and humidity near 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 68 mm, so plan one flexible day in three; you still get about 20 days with 6+ hours of sunshine and 11.6 hours of daylight.
It scores 8.4/10 here, 3rd of 12 months, against 8.7/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Koh Lanta in January?
- In January, Koh Lanta averages 26°C, 68 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 8.4/10.
- Is January a good time to visit Koh Lanta?
- January earns a 8.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Koh Lanta in January?
- Expect about 68 mm of rain in January. Average humidity is 86% and there are about 20 days with 6+ hours of sunshine.
Curated in Koh Lanta
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Things to do in Koh Lanta
Koh Lanta, Thailand. Live activities and tours from GetYourGuide, matched to this destination.