Weather in Costeni in September

General weather information about Costeni

Average annual temperature is 13.3 °C

Absolute maximum temperature: 36.0 °C

Absolute minimum temperature: -8.6 °C

Number of sunny days: 180 days

Number of rainy days: 184 days

Number of snow days: 1 day

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* Weather data for Costeni Romania is based on climate observations for 2026 year

Costeni air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)17.316.720.020.525.930.936.035.829.826.318.715.3
Average daytime temperature (°C)8.18.513.315.320.624.930.630.326.521.511.58.5
Average temperature (°C)4.53.77.610.316.020.124.724.520.515.07.84.0
Average night temperature (°C)1.6-0.32.75.611.315.418.518.815.49.54.10.3
Absolute minimum temperature (°C)-2.7-8.6-2.20.16.811.712.413.511.93.1-4.6-3.2

Costeni monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.210.411.913.514.815.515.214.012.511.09.68.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)3.47.47.88.19.010.313.312.410.49.34.94.6
Precipitation (mm)12135471217115113617489820
Sunny days141817767151819261419
Rainy days1791423252316131151612
Snow days010000000000

Costeni - weather forecast by months

Costeni weather in januaryCosteni weather in februaryCosteni weather in marchCosteni weather in aprilCosteni weather in mayCosteni weather in juneCosteni weather in julyCosteni weather in augustCosteni weather in septemberCosteni weather in octoberCosteni weather in novemberCosteni weather in december

Best time to visit Costeni:

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

  • July — 13.3(h)
  • August — 12.4(h)

Months with the longest average daylight duration in Costeni:

  • June — 15.5(h)

The largest precipitation sum in Costeni is at

  • January — 121(mm)
  • April — 121(mm)
  • June — 151(mm)
  • November — 98(mm)

    • Weather forecast in the closest to Costeni admin centers

    Weather forecast in the closest towns to Costeni

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    Frequently asked questions

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