Climate guide for Koh Lanta, Thailand

Koh Lanta in April

Weather, crowds & best time to visit

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April · Thailand

Best time to visit Koh Lanta in April Weather, crowds & prices

Weather in Koh Lanta in April

Average temperature 29°C, 116 mm of rain, about 26 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

April score

7.8/10

Ranked #4 of 12 months

Full year for Koh Lanta
Avg temp
29°C
Rainfall
116 mm
Humidity
78%
Days with 6h+ sun
26
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

April in Koh Lanta scores 7.8/10 for beach and coastal travel - an above-average month (#4 of 12). Expect around 29°C, 116 mm of rain, and roughly 26 days with 6+ hours of sunshine this month.

Koh Lanta's quiet beaches and long sunsets suit families and travellers avoiding the crowds.

April in Koh Lanta — reliably good (4th best month)

April averages 29°C (84°F) and humidity near 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.

Monthly rainfall reaches 116 mm — wet for this destination — but about 26 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 7.8/10 here, 4th 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 proper rain shell rather than an umbrella.

Figure on mid-season pricing, with crowds are moderate.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Koh Lanta in April?
In April, Koh Lanta averages 29°C, 116 mm of rain, and about 26 days with 6+ hours of sunshine. Its climate-comfort score is 7.8/10.
Is April a good time to visit Koh Lanta?
April earns a 7.8/10 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 April?
Expect about 116 mm of rain in April. Average humidity is 78% and there are about 26 days with 6+ hours of sunshine.

Curated in Koh Lanta

Tickets & experiences

Things to do in Koh Lanta

Koh Lanta, Thailand. Live activities and tours from GetYourGuide, matched to this destination.