Best year time to visit Deans Island

General weather information about Deans Island

Average annual temperature is 17.6 °C

Absolute maximum temperature: 37.7 °C

Absolute minimum temperature: -4.4 °C

Number of sunny days: 189 days

Number of rainy days: 175 days

Number of snow days: 1 day

Look at detailed online map of Deans Island

* Weather data for Deans Island United States is based on climate observations for 2026 year

Deans Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)21.923.925.328.232.137.736.037.432.931.425.819.9
Average daytime temperature (°C)12.815.116.721.727.431.532.832.129.623.816.613.3
Average temperature (°C)8.69.711.716.021.825.827.727.224.118.711.48.4
Average night temperature (°C)5.06.07.611.616.920.523.523.319.514.47.34.8
Absolute minimum temperature (°C)-2.7-4.4-4.24.88.516.918.917.915.30.9-1.0-2.0

Deans Island monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.09.0
Daylight mean duration (h)10.110.912.013.114.014.514.313.512.411.310.39.8
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.09.09.0
Sunshine mean duration (h)5.76.67.88.211.512.411.310.310.98.07.87.2
Precipitation (mm)138103196126576813212037783874
Sunny days11141515141591319212221
Rainy days20131615171522181110810
Snow days010000000000

Best time to visit Deans Island:

The best time to visit Deans Island during the most sunny months:

  • May — 11.5(h)
  • June — 12.4(h)
  • July — 11.3(h)

The largest precipitation sum in Deans Island is at

  • January — 138(mm)
  • March — 196(mm)
  • April — 126(mm)
  • July — 132(mm)
  • Frequently asked questions

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