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Nan Weather and Climate: A Comprehensive Guide

Nan maintains a fairly consistent very warm average temperature. It also has a notably wet climate with much precipitation. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

With minimal seasonal shifts, Nan experiences a constant climate year-round. Average maximum daytime temperatures range from a very hot 37°C in April, the warmest time of the year, to a very warm 31°C during cooler months like January.

At night, temperatures typically drop to an average of around 16°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Nan has a notably wet climate with abundant precipitation, recording 1618 mm of rainfall per year. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, August receives heavy rainfall, averaging 352 mm of precipitation, recorded across 22 rainy days. In contrast, the drier season, February brings less rainfall, with 9.8 mm over 2 rainy days. For more details, please visit our Nan Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Nan

Wed   Jan 15
29°C | 11°C
NW 1 m/s
clear and no rain

clear and no rain

Thu   Jan 16
29°C | 12°C
N 1 m/s
clear and no rain

clear and no rain

Fri   Jan 17
29°C | 12°C
SW 1 m/s
clear and no rain

clear and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Nan in Thailand

Other facts from our historical weather data:
  • When is the rainy season in Nan?
    Rainy season in Nan occurs in the months of May, June, July, August and September.
  • Does Nan have a dry season?
    Yes, the months of January, February and December are very dry.
  • Which is the hottest month in Nan?
    April has an average maximum temperature of 37°C and is the hottest month of the year.
  • Which is the coolest month in Nan?
    The coolest month is January with an average maximum temperature of 31°C.
  • Which is the wettest month in Nan?
    August tops the wettest month list with 352 mm of rainfall.
  • Which is the driest month in Nan?
    February is the driest month with 10 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.