May weather forecastKoriyama, Japan
May weather for Koriyama, Japan: On the last day of the month, in Koriyama, sunrise is at 04:19 and sunset at 18:52 JST. May, the last month of the spring in Koriyama, is an agreeable month, with an average temperature varying between 8.9°C (48°F) and 20.1°C (68.2°F).
May
Weather in May
May, the last month of the spring in Koriyama, is an agreeable month, with an average temperature varying between 8.9°C (48°F) and 20.1°C (68.2°F).Temperature
As Koriyama welcomes May, the average high-temperature sees a rise, transitioning from a fresh 12.9°C (55.2°F) in April to a pleasant 20.1°C (68.2°F). In the month of May, the temperature generally rests at an average low of 8.9°C (48°F).Humidity
With an average relative humidity of 73%, May is the least humid month.Rainfall
In May, the rain falls for 14.6 days. Throughout May, 71mm (2.8") of precipitation is accumulated. In Koriyama, during the entire year, the rain falls for 183.1 days and collects up to 848mm (33.39") of precipitation.Snowfall
May through October are months without snowfall in Koriyama.Daylight
The average length of the day in May is 14h and 11min.On the first day of May in Koriyama, sunrise is at 04:43 and sunset at 18:28. On the last day of the month, sunrise is at 04:19 and sunset at 18:52 JST.
Sunshine
The month with the most sunshine is May, with an average of 9.5h of sunshine.UV index
In Koriyama, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Koriyama, Japan
- Average high temperature in May: 20.1°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (1°C).
- Average low temperature in May: 8.9°C
The month with the highest average low temperature is August (18.7°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in May
Koriyama, Japan
- Average pressure in May: 1012.1mbar
The month with the highest atmospheric pressure is November (1018.8mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in May
Koriyama, Japan
- Average wind speed in May: 9.7km/h
The windiest month (with the highest average wind speed) is January (12.1km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in May
Koriyama, Japan
- Average humidity in May: 73%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is May (73%).
Average rainfall in May
Koriyama, Japan
- Average rainfall in May: 71mm
The wettest month (with the highest rainfall) is July (127mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in May
Koriyama, Japan
- Average rainfall days in May: 14.6 days
The month with the highest number of rainy days is July (24.1 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in May
Koriyama, Japan
- Average snowfall in May: 0mm
The month with the highest snowfall is January (177mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Koriyama, Japan
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Koriyama, Japan
- Average daylight in May: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in May
Koriyama, Japan
- Average sunshine days in May: 14.5 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is July (4.6 days).
Average UV index in May
Koriyama, Japan
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Koriyama, Japan
- Average cloud cover in May: 39
The month with the most cloud cover is July (Cloud cover 54).
The month with the least cloud cover is May (Cloud cover 39).
Average visibility in May
Koriyama, Japan
- Average visibility in May: 9km
The months with the highest visibility are April and May (9km).
The months with the lowest visibility are July, August and September (7km).
