January in Bangkok: strong conditions, 2nd of 12
Good · 8/10January averages 27°C (80°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 7 mm for the month, with about 22 days with 6+ hours of sunshine and 11.3 hours of daylight to work with.
It scores 8/10 here, 2nd of 12 months, against 8.3/10 in the destination's best month.
Figure on 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.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
February holds up well in Bangkok — 3rd best month
Good · 7/10February averages 29°C (84°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 35 mm of rain — occasional showers rather than washed-out days — alongside about 21 days with 6+ hours of sunshine and 11.5 daylight hours.
It scores 7/10 here, 3rd of 12 months, against 8.3/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
March in Bangkok — workable with trade-offs
Trade-offs · 6.6/10Days in March average 31°C (87°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
With around 37 mm of rain, any showers tend to pass through rather than settle in; about 26 days with 6+ hours of sunshine and 11.9 hours of daylight fill the rest.
That is 6.6/10 on the same scale — 4th of 12 months, versus 8.3/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
If your dates are flexible, December is materially better in Bangkok — 1.7 points higher on the same scale.
April in Bangkok: mixed conditions, plan around the weather
Trade-offs · 6.5/10April averages 32°C (90°F) at 60% humidity — genuinely punishing heat. Anything outdoors needs to happen before 10am.
Expect 41 mm of rain — occasional showers rather than washed-out days — alongside about 27 days with 6+ hours of sunshine and 12.3 daylight hours.
It scores 6.5/10 here, 5th of 12 months, against 8.3/10 in the destination's best month.
Plan for mid-season pricing, with crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
Flexible dates? December scores 1.8 points higher here — enough to change the trip.
May in Bangkok: expect compromises
Hardest · 3.3/10Days in May average 30°C (87°F) and humidity near 73% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
183 mm of rain makes this a wet month here, though with about 24 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 3.3/10 on the same scale — 9th of 12 months, versus 8.3/10 for the best month here.
Budget for low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, December is materially better in Bangkok — 5 points higher on the same scale.
June in Bangkok: expect compromises
Hardest · 4.3/10June 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 130 mm — wet for this destination — but about 23 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 4.3/10 here, 7th of 12 months, against 8.3/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Flexible dates? December scores 4 points higher here — enough to change the trip.
July in Bangkok: expect compromises
Hardest · 3.3/10July averages 28°C (83°F) and humidity near 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
230 mm makes this the wettest stretch of the year, though about 20 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 3.3/10 here, 10th of 12 months, against 8.3/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Flexible dates? December scores 5 points higher here — enough to change the trip.
August in Bangkok — the hardest end of the year
Hardest · 3.3/10Days in August average 28°C (83°F) and humidity near 83% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
This is the year's wettest stretch at 244 mm, but with about 23 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 3.3/10 on the same scale — 11th of 12 months, versus 8.3/10 for the best month here.
Budget for low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, December is materially better in Bangkok — 5 points higher on the same scale.
September in Bangkok: expect compromises
Hardest · 3.1/10Days in September average 28°C (82°F) and humidity near 86% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 344 mm: only about 18 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 3.1/10 on the same scale — 12th of 12 months, versus 8.3/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, December is materially better in Bangkok — 5.2 points higher on the same scale.
October in Bangkok: expect compromises
Hardest · 3.5/10October averages 27°C (81°F) and humidity near 85%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
208 mm of rain puts this in monsoon territory — about 18 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 3.5/10 here, 8th of 12 months, against 8.3/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Flexible dates? December scores 4.8 points higher here — enough to change the trip.
November in Bangkok: mixed conditions, plan around the weather
Trade-offs · 6.5/10November averages 26°C (80°F) and humidity near 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 57 mm, so plan one flexible day in three; you still get about 18 days with 6+ hours of sunshine and 11.4 hours of daylight.
It scores 6.5/10 here, 6th of 12 months, against 8.3/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Flexible dates? December scores 1.8 points higher here — enough to change the trip.
December: the best month of the year in Bangkok
Best window · 8.3/10At 25°C (77°F) this is comfortable city weather in December, with sightseeing easiest before lunch and after the afternoon peak.
At just 5 mm for the month, rain will not shape your plans; you get about 20 days with 6+ hours of sunshine and 11.2 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Bangkok at 8.3/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and 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.
Pack light clothing, a hat and real sun protection.
