Weather in Si’an in May

General weather information about Si’an

Average annual temperature is 21.1 °C

Absolute maximum temperature: 33.9 °C

Absolute minimum temperature: -0.9 °C

Number of sunny days: 89 days

Number of rainy days: 276 days

Look at detailed online map of Si’an

* Weather data for Si’an China is based on climate observations for 2026 year

Si’an air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)24.524.129.129.133.333.733.933.731.731.428.826.2
Average daytime temperature (°C)15.418.322.524.727.930.832.231.529.826.222.617.9
Average temperature (°C)11.313.918.220.924.527.228.727.726.422.518.413.1
Average night temperature (°C)7.210.014.217.721.424.425.424.623.819.314.89.0
Absolute minimum temperature (°C)0.53.09.210.616.622.824.721.421.615.77.1-0.9

Si’an 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)10.811.312.012.713.313.613.513.012.311.611.010.7
Daylight minimum duration (h)10.011.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)5.85.25.45.87.68.810.69.49.18.07.76.8
Precipitation (mm)103110287293215304140268152894929
Sunny days141211412030131316
Rainy days171620263028312830181715
Snow days000000000000

Si’an - weather forecast by months

Si’an weather in januarySi’an weather in februarySi’an weather in marchSi’an weather in aprilSi’an weather in maySi’an weather in juneSi’an weather in julySi’an weather in augustSi’an weather in septemberSi’an weather in octoberSi’an weather in novemberSi’an weather in december

Best time to visit Si’an:

The best time to visit Si’an during the most sunny months:

  • July — 10.6(h)
  • August — 9.4(h)

The largest precipitation sum in Si’an is at

  • March — 287(mm)
  • April — 293(mm)
  • May — 215(mm)
  • June — 304(mm)
  • August — 268(mm)

    • Weather forecast in the closest to Si’an admin centers

    Weather forecast in the closest towns to Si’an

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    Frequently asked questions

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