Weather in Sīāvān in December

General weather information about Sīāvān

Average annual temperature is 11.6 °C

Absolute maximum temperature: 35.0 °C

Absolute minimum temperature: -17.2 °C

Number of sunny days: 230 days

Number of rainy days: 113 days

Number of snow days: 22 days

Look at detailed online map of Sīāvān

* Weather data for Sīāvān Iran is based on climate observations for 2026 year

Sīāvān air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)5.511.015.422.225.131.735.034.632.323.919.613.3
Average daytime temperature (°C)1.70.011.815.820.426.930.430.825.618.313.48.0
Average temperature (°C)-2.3-4.16.410.014.720.824.024.719.512.77.73.5
Average night temperature (°C)-5.2-8.91.54.38.914.517.418.313.47.52.9-0.5
Absolute minimum temperature (°C)-9.7-17.2-6.5-6.51.510.813.914.28.44.6-4.4-4.8

Sīāvān monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.012.011.010.09.0
Daylight mean duration (h)9.910.812.013.214.214.714.413.612.411.210.29.7
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)7.58.89.210.911.413.513.311.911.59.57.77.1
Precipitation (mm)2041585056141156123141
Sunny days231714151018272723201620
Rainy days0117132112447111310
Snow days8100200000011

Sīāvān - weather forecast by months

Sīāvān weather in januarySīāvān weather in februarySīāvān weather in marchSīāvān weather in aprilSīāvān weather in maySīāvān weather in juneSīāvān weather in julySīāvān weather in augustSīāvān weather in septemberSīāvān weather in octoberSīāvān weather in novemberSīāvān weather in december

Best time to visit Sīāvān:

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

  • June — 13.5(h)
  • July — 13.3(h)

The largest precipitation sum in Sīāvān is at

  • February — 41(mm)
  • March — 58(mm)
  • April — 50(mm)
  • May — 56(mm)
  • December — 41(mm)

    • Weather forecast in the closest to Sīāvān admin centers

    Weather forecast in the closest towns to Sīāvān

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    Frequently asked questions

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