Weather in Sanmen in September

General weather information about Sanmen

Average annual temperature is 21.3 °C

Absolute maximum temperature: 35.4 °C

Absolute minimum temperature: 1.4 °C

Number of sunny days: 103 days

Number of rainy days: 262 days

Look at detailed online map of Sanmen

* Weather data for Sanmen China is based on climate observations for 2026 year

Sanmen air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)24.825.228.729.135.333.735.433.932.031.828.227.5
Average daytime temperature (°C)16.820.723.725.228.330.631.730.629.426.423.918.8
Average temperature (°C)12.715.919.121.324.526.527.826.725.922.519.013.8
Average night temperature (°C)8.511.515.018.221.523.624.624.023.319.414.79.3
Absolute minimum temperature (°C)2.15.49.912.417.922.423.322.221.915.07.11.4

Sanmen monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)11.011.012.013.013.013.013.013.012.011.011.010.0
Daylight mean duration (h)10.911.412.012.713.313.613.412.912.311.611.010.7
Daylight minimum duration (h)10.011.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)5.56.35.55.97.18.710.68.37.17.38.16.5
Precipitation (mm)100762932633054762644093671532120
Sunny days141715541121121714
Rainy days171116252729302929191317
Snow days000000000000

Sanmen - weather forecast by months

Sanmen weather in januarySanmen weather in februarySanmen weather in marchSanmen weather in aprilSanmen weather in maySanmen weather in juneSanmen weather in julySanmen weather in augustSanmen weather in septemberSanmen weather in octoberSanmen weather in novemberSanmen weather in december

Best time to visit Sanmen:

The best time to visit Sanmen during the most sunny months:

  • July — 10.6(h)

The largest precipitation sum in Sanmen is at

  • March — 293(mm)
  • May — 305(mm)
  • June — 476(mm)
  • August — 409(mm)
  • September — 367(mm)

    • Weather forecast in the closest to Sanmen admin centers

    Weather forecast in the closest towns to Sanmen

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    Frequently asked questions

    When is the best time to visit Sanmen?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Sanmen.
    What is the weather like in Sanmen?
    See average temperature, rainfall and daylight hours for Sanmen by month in the table above.
    How many sunny days does Sanmen have?
    The monthly weather statistics above show sunshine and rainfall patterns for Sanmen throughout the year.