15 to 29°C
temperature
2552 hours
sunshine per day
1199 mm
rain
151 days
dry
214 days
rain
0 days
snow

Climate of Koshima

Koshima has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Koshima is 22° degrees and there is about 1199 mm of rain in a year. It is dry for 119 days a year with an average humidity of 75% and an UV-index of 6.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 15°C and 29°C
  • Night:the average nighttime temperature is between 13°C and 28°C
  • Sea temperature: the sea temperature is between 21°C and 30°C
  • Rain: it rains 214 days and there is a total of approximately 1199 mm rainfall
  • Sun hours: throughout the year there are 2552 sun hours
Maximum temperature: between 15°C and 29°C
Warmest month: 29°C in August
Coldest month: 15°C in January
Night temperature: between 13°C and 28°C
Sea temperature: between 21°C and 30°C
Dry days: 151 days
Days with rain: 214 days
Days with snow: 0 days
Total rain sum: 1199 mm
Hours of sunshine: 2552 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Koshima.

Precipitation graph

This graph shows the average amount of rainfall per month for Koshima.

Climate table of Koshima

In this climate table you can see at a glance what the average weather per month is for Koshima. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Koshima might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 15 16 17 20 23 25 28 29 28 25 21 17
Night temp. (°C) 13 13 15 18 21 24 27 28 27 24 19 15
Water temp. (°C) 23 21 21 23 25 26 30 30 29 28 25 23
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 60 86 93 92 77 219 105 76 106 113 86 86
Days with rain 19 18 18 16 13 21 17 17 19 17 18 21
Dry days 12 10 13 14 18 9 14 14 11 14 12 10
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 5 6 8 9 8 10 11 9 5 5 4
Wind force (Bft) 5 4 4 4 4 4 4 4 4 4 4 5
UV-index 4 4 4 5 6 7 7 7 7 6 5 4

Best time to visit Koshima

The best time to visit Koshima in Japan is from April and May, August and November. In this period you have a warm temperature and little precipitation. The highest average temperature in Koshima is 29°C in August and the lowest is 15°C in January. The average water temperature is between 21°C and 30°C.

Climate of Koshima by month

What is the average climate in a given month for Koshima? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Koshima weather experiences

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