ClimateForecastDecemberJanuary >>

Sennan Climate by Month

Sennan experiences great temperature shifts. The city's weather can transition from very warm days to cold weather. It also has a notably wet climate with much precipitation. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

The climate in Sennan is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures range from a very warm 33°C in August, the warmest time of the year, to a chilly 10°C during cooler months like January. At night, temperatures typically average around 3°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Sennan has a notably wet climate with abundant precipitation, recording 1647 mm of rain/snowfall per year. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, June receives heavy rainfall, averaging 233 mm of precipitation, recorded across 18 rainy days. In contrast, the drier season, January brings less rainfall, with 80 mm over 17 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Sennan. While August receives considerable daily sunshine with up to 7.6 hours, February marks the darkest time of the year, where sunshine is scarce with only 4.5 hours of sunlight per day.

Monthly hours of sunshine

Data from: Wakayama, Japan (17 KM, 10 Miles).

Daily hours of sunshine

Data from: Wakayama, Japan (17 KM, 10 Miles).

The best time of year to visit Sennan in Japan

During the months of May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Sennan?
    Most rainfall (rainy season) is seen in June, July, September and October.
  • Which is the warmest month in Sennan?
    August has an average maximum temperature of 33°C and is the warmest month of the year.
  • Which is the coldest month in Sennan?
    The coldest month is January with an average maximum temperature of 10°C.
  • Which is the wettest month in Sennan?
    June tops the wettest month list with 233 mm of rainfall.
  • Which is the driest month in Sennan?
    January is the driest month with 80 mm of precipitation.
  • Which is the sunniest month in Sennan?
    August is the sunniest month with an average of 228 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Sennan

    Thu   Dec 12
    11°C | 5°C
    N 18 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Fri   Dec 13
    12°C | 4°C
    E 7 km/h
    0.4 mm
    overcast and  chance of slight rain

    overcast and chance of slight rain

    Sat   Dec 14
    10°C | 4°C
    NW 22 km/h
    5.5 mm
    partly cloudy and rain

    partly cloudy and rain