January holds up well in Hanoi — 4th best month
Good · 7.4/10January averages 16°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 48 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 10.9 hours of daylight.
It scores 7.4/10 here, 4th of 12 months, against 8.5/10 in the destination's best month.
Plan for peak pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
February in Hanoi — workable with trade-offs
Trade-offs · 6.5/10February averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 81 mm, so plan one flexible day in three; you still get about 2 days with 6+ hours of sunshine and 11.3 hours of daylight.
It scores 6.5/10 here, 6th of 12 months, against 8.5/10 in the destination's best month.
Plan for mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Flexible dates? November scores 2 points higher here — enough to change the trip.
March in Hanoi: strong conditions, 3rd of 12
Good · 7.6/10At 22°C (72°F) this is comfortable city weather in March, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 55 mm of rain this month — a flexible day or two helps — with about 6 days with 6+ hours of sunshine and 11.9 hours of daylight to work around it.
That is 7.6/10 on the same scale — 3rd of 12 months, versus 8.5/10 for the best month here.
Budget for peak pricing, and crowds are moderate. 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, a packable rain layer.
April in Hanoi — workable with trade-offs
Trade-offs · 6.6/10April averages 26°C (78°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rainfall runs 58 mm, so plan one flexible day in three; you still get about 13 days with 6+ hours of sunshine and 12.5 hours of daylight.
It scores 6.6/10 here, 5th of 12 months, against 8.5/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack light clothing, a hat and real sun protection, a packable rain layer.
Flexible dates? November scores 1.9 points higher here — enough to change the trip.
May in Hanoi — the hardest end of the year
Hardest · 3.4/10Days in May average 27°C (81°F) and humidity near 83% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 221 mm: only about 15 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 3.4/10 on the same scale — 8th of 12 months, versus 8.5/10 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, November is materially better in Hanoi — 5.1 points higher on the same scale.
June in Hanoi — off-season conditions
Hardest · 2.6/10June averages 29°C (84°F) and humidity near 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
268 mm of rain puts this in monsoon territory — about 17 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 2.6/10 here, 12th of 12 months, against 8.5/10 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? November scores 5.9 points higher here — enough to change the trip.
July in Hanoi — the hardest end of the year
Hardest · 2.8/10July averages 29°C (84°F) and humidity near 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
273 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 2.8/10 here, 10th of 12 months, against 8.5/10 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? November scores 5.7 points higher here — enough to change the trip.
August in Hanoi — off-season conditions
Hardest · 2.8/10Days in August average 28°C (83°F) and humidity near 87% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 359 mm: only about 18 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 2.8/10 on the same scale — 11th of 12 months, versus 8.5/10 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, November is materially better in Hanoi — 5.7 points higher on the same scale.
September in Hanoi — the hardest end of the year
Hardest · 2.9/10Days in September average 27°C (81°F) and humidity near 87% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 378 mm: only about 15 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 2.9/10 on the same scale — 9th of 12 months, versus 8.5/10 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, November is materially better in Hanoi — 5.6 points higher on the same scale.
October in Hanoi: mixed conditions, plan around the weather
Trade-offs · 6.3/10October averages 24°C (75°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rainfall runs 96 mm, so plan one flexible day in three; you still get about 16 days with 6+ hours of sunshine and 11.5 hours of daylight.
It scores 6.3/10 here, 7th of 12 months, against 8.5/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack light clothing, a hat and real sun protection, a packable rain layer.
Flexible dates? November scores 2.2 points higher here — enough to change the trip.
November: the best month of the year in Hanoi
Best window · 8.5/10November averages 22°C (71°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Expect 33 mm of rain — occasional showers rather than washed-out days — alongside about 10 days with 6+ hours of sunshine and 11 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Hanoi at 8.5/10 — the reference point every other month on this page is measured against.
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.
Pack light clothing, a hat and real sun protection.
December in Hanoi: strong conditions, 2nd of 12
Good · 8.2/10Temperatures hover around 16°C (60°F) — the kind of month where neither heat nor cold forces the schedule.
At just 10 mm for the month, rain will not shape your plans; you get about 2 days with 6+ hours of sunshine and 10.7 hours of daylight.
That is 8.2/10 on the same scale — 2nd of 12 months, versus 8.5/10 for the best month here.
Budget for 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 layers you can shed by midday plus one warm layer for the evening.
