Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May brings a rise in Iwamizawa's average high-temperature, moving from a chilly 8.7°C (47.7°F) in April to a refreshing 16°C (60.8°F). During May, Iwamizawa witnesses a consistent average low-temperature of 6.3°C (43.3°F).Humidity
May is the least humid month in Iwamizawa, with an average relative humidity of 77%.Rainfall
In Iwamizawa, during May, the rain falls for 15 days and regularly aggregates up to 50mm (1.97") of precipitation. In Iwamizawa, during the entire year, the rain falls for 162.3 days and collects up to 769mm (30.28") of precipitation.Snowfall
January through May, October through December are months with snowfall in Iwamizawa. May is the last month it regularly snows in Iwamizawa. During 0.2 snowfall days, in May, Iwamizawa aggregates 2mm (0.08") of snow. In Iwamizawa, during the entire year, snow falls for 109.6 days and aggregates up to 1497mm (58.94") of snow.Daylight
In May, the average length of the day is 14h and 40min.On the first day of May, sunrise is at 04:25 and sunset at 18:34. On the last day of the month, sunrise is at 03:56 and sunset at 19:05 JST.
Sunshine
The month with the most sunshine is May, with an average of 8.8h of sunshine.UV index
In Iwamizawa, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 4 in May leads to these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the usual temperature for Iwamizawa in May?
What is the least humid month in Iwamizawa?
What is the average humidity in May in Iwamizawa?
How much does it rain in Iwamizawa in May?
What is the last month it snows in Iwamizawa?
What is the average length of the day in May in Iwamizawa?
What time are sunrise and sunset in May in Iwamizawa?
What month has the most sunshine in Iwamizawa?
How many hours of sunshine does Iwamizawa have in May?
How high is the UV index in May in Iwamizawa?
Average temperature in May
Iwamizawa, Japan
- Average high temperature in May: 16°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (-3.7°C).
- Average low temperature in May: 6.3°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (-10.6°C).
Average pressure in May
Iwamizawa, Japan
- Average pressure in May: 1010.3mbar
The month with the highest atmospheric pressure is November (1016mbar).
The month with the lowest atmospheric pressure is July (1008.7mbar).
Average wind speed in May
Iwamizawa, Japan
- Average wind speed in May: 11.3km/h
The windiest month (with the highest average wind speed) is April (12.1km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).
Average humidity in May
Iwamizawa, Japan
- Average humidity in May: 77%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in May
Iwamizawa, Japan
- Average rainfall in May: 50mm
The wettest month (with the highest rainfall) is August (118mm).
The driest months (with the least rainfall) are February and April (44mm).
Average rainfall days in May
Iwamizawa, Japan
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in May
Iwamizawa, Japan
- Average snowfall in May: 2mm
The month with the highest snowfall is December (394mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Iwamizawa, Japan
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (25.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Iwamizawa, Japan
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is May (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in May
Iwamizawa, Japan
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is May (13.8 days).
The month with the least sunshine days is December (3 days).
Average UV index in May
Iwamizawa, Japan
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Iwamizawa, Japan
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is September (Cloud cover 41).
Average visibility in May
Iwamizawa, Japan
- Average visibility in May: 9km
The months with the highest visibility are April, May and October (9km).
The month with the lowest visibility is January (6km).
Iwamizawa, Japan
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