Best year time to visit Roseau

General weather information about Roseau

Average annual temperature is 5.5 °C

Absolute maximum temperature: 33.5 °C

Absolute minimum temperature: -31.5 °C

Number of sunny days: 183 days

Number of rainy days: 127 days

Number of snow days: 55 days

Look at detailed online map of Roseau

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

Roseau air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)-0.44.53.015.228.433.531.130.532.228.710.17.2
Average daytime temperature (°C)-7.1-5.0-2.46.721.826.324.624.722.211.32.60.5
Average temperature (°C)-10.6-11.2-7.41.314.920.418.919.316.87.3-1.7-2.9
Average night temperature (°C)-13.8-16.2-11.7-3.18.915.513.814.712.63.6-4.7-5.8
Absolute minimum temperature (°C)-29.4-31.5-20.2-13.8-0.97.99.19.15.7-10.0-13.9-18.5

Roseau monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.810.211.913.715.316.115.714.312.610.89.28.3
Daylight minimum duration (h)8.09.011.012.014.015.015.013.011.09.08.08.0
Sunshine mean duration (h)3.27.38.17.512.012.413.310.98.86.15.03.7
Precipitation (mm)88275728971114073912231
Sunny days21172212201291116121516
Rainy days400911182220141667
Snow days6119900000398

Roseau - weather forecast by months

Roseau weather in januaryRoseau weather in februaryRoseau weather in marchRoseau weather in aprilRoseau weather in mayRoseau weather in juneRoseau weather in julyRoseau weather in augustRoseau weather in septemberRoseau weather in octoberRoseau weather in novemberRoseau weather in december

Best time to visit Roseau:

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

  • May — 12.0(h)
  • June — 12.4(h)
  • July — 13.3(h)
  • August — 10.9(h)

Months with the longest average daylight duration in Roseau:

  • June — 16.1(h)
  • July — 15.7(h)

The largest precipitation sum in Roseau is at

  • June — 97(mm)
  • July — 111(mm)
  • September — 73(mm)
  • October — 91(mm)

    • Weather forecast in the closest to Roseau admin centers

    Weather forecast in the closest towns to Roseau

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    Frequently asked questions

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