January in Vientiane — the year's strongest window
Best window · 9.6/10January averages 23°C (73°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 17 mm of rain — occasional showers rather than washed-out days — alongside about 29 sunny days and 11.2 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Vientiane at 9.6/10 — 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, swimwear and real sun protection.
February in Vientiane — the year's strongest window
Best window · 9/10February averages 24°C (76°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 22 mm of rain — occasional showers rather than washed-out days — alongside about 26 sunny days and 11.6 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Vientiane at 9/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection.
March in Vientiane — reliably good (5th best month)
Good · 7.1/10March averages 27°C (81°F), 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 29 sunny days and 12 hours of daylight.
It scores 7.1/10 here, 5th of 12 months, against 9.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, January is materially better in Vientiane — 2.5 points higher on the same scale.
April in Vientiane — workable with trade-offs
Trade-offs · 6.5/10April averages 30°C (86°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 51 mm, so plan one flexible day in three; you still get about 30 sunny days and 12.6 hours of daylight.
It scores 6.5/10 here, 6th of 12 months, against 9.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, January is materially better in Vientiane — 3.1 points higher on the same scale.
May in Vientiane — the hardest end of the year
Hardest · 3/10May averages 29°C (83°F) with humidity around 75%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
282 mm of rain puts this in monsoon territory — about 25 sunny days across the whole month, and multi-day washouts are normal.
It scores 3/10 here, 12th of 12 months, against 9.6/10 in the destination's best month.
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, January is materially better in Vientiane — 6.6 points higher on the same scale.
June in Vientiane — the hardest end of the year
Hardest · 3.1/10June averages 28°C (82°F) with humidity around 85%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
355 mm of rain puts this in monsoon territory — about 24 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.1/10 here, 8th of 12 months, against 9.6/10 in the destination's best month.
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, January is materially better in Vientiane — 6.5 points higher on the same scale.
July in Vientiane — the hardest end of the year
Hardest · 3.1/10July averages 27°C (81°F) with humidity around 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
416 mm of rain puts this in monsoon territory — about 25 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.1/10 here, 9th of 12 months, against 9.6/10 in the destination's best month.
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, January is materially better in Vientiane — 6.5 points higher on the same scale.
August in Vientiane — the hardest end of the year
Hardest · 3.1/10August averages 27°C (80°F) with humidity around 87%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
403 mm of rain puts this in monsoon territory — about 19 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.1/10 here, 10th of 12 months, against 9.6/10 in the destination's best month.
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, January is materially better in Vientiane — 6.5 points higher on the same scale.
September in Vientiane — the hardest end of the year
Hardest · 3.1/10September averages 27°C (80°F) with humidity around 87%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
468 mm of rain puts this in monsoon territory — about 19 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.1/10 here, 11th of 12 months, against 9.6/10 in the destination's best month.
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, January is materially better in Vientiane — 6.5 points higher on the same scale.
October in Vientiane — the hardest end of the year
Hardest · 4.4/10October averages 26°C (80°F) with humidity around 78%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 150 mm this is a genuinely wet month: about 29 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.4/10 here, 7th of 12 months, against 9.6/10 in the destination's best month.
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, January is materially better in Vientiane — 5.2 points higher on the same scale.
November in Vientiane — reliably good (4th best month)
Good · 8.2/10November averages 26°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 36 mm of rain — occasional showers rather than washed-out days — alongside about 30 sunny days and 11.3 daylight hours.
It scores 8.2/10 here, 4th of 12 months, against 9.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection.
December in Vientiane — the year's strongest window
Best window · 9.6/10December averages 23°C (73°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 0 mm for the month, with about 30 sunny days and 11.1 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Vientiane at 9.6/10 — 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, swimwear and real sun protection.
