Weather in Sa Pa in October

Vietnam · 20-year averages, October

A good month. October is a solid month to be in Sa Pa. Highs average 21.7 °C, lows 12.8 °C, and rain falls on 14 days — nothing in the month is working against you.

October ranks 6 of 12 in Sa Pa: past the worst of the year but short of February, which is the month to book if the dates are open.

Rain on 14 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average October reaches 30 °C. Across the twenty years measured, the hottest October day reached 27.6 °C and the coldest night fell to 4.2 °C, and the wettest single day dropped 52 mm — roughly 54% of the month's rain in one day.

October is moderately variable: 20 mm in the driest year against 207 mm in the wettest, around an average of 96 mm. Roughly two Octobers in three land near that average, and the third does something else entirely.

Wind is light at 2.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 83%, high enough to notice on the warm days without dominating them.

How October sits in the year

The month is on the way down: 2.7 °C cooler than September, with November dropping another 2.9 °C. The first week and the last are not the same trip. Rain is the thing that moves: November brings 6 days less of it, so pushing the dates later buys drier weather.

Daylight in October

11.7 hours of daylight, losing 0.6 hours across the month. That is between Sa Pa's extremes of 13.5 and 10.8 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 22 °C between the year's warmest afternoons and coldest nights. At 1500 m, altitude is doing as much work here as latitude: thinner air means fierce sun by day and heat that leaves the moment it sets.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

October in Sa Pa versus nearby

If Sa Pa is one option among several, the nearby comparison is worth making. Hanoi is close enough to be a coin toss — 6.8 °C warmer, 3 days less rain. Luang Prabang is the weaker option in October — 10.7 °C warmer, 4 days less rain.

So: October works, with February the better month by 13 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Sa Pa

MonthHigh °CLow °CRain daysRain mmHumidity %Daylight hScore
January14.94.1 6418210.973
February18.26.2 5227711.486
March21.89.5 953741284
April24.713.2 161107412.669
May2615.8 191737513.265
June26.117.5 232148013.565
July25.717.6 252878113.465
August25.517.2 243308212.965
September24.415.7 191908112.365
October21.712.8 14968311.773
November18.88.8 8508111.182
December154.6 5338210.875

See all twelve months in Sa Pa, or where else to go in October.

Planning the rest of the trip

Built and maintained by Amit Sharma, Auckland, New Zealand. I build these sites so the answer is free and the data is public.

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