May weather forecastHayama, Japan
May
Weather in May
May, the last month of the spring in Hayama, is an agreeable month, with temperature in the range of an average low of 17°C (62.6°F) and an average high of 21.2°C (70.2°F).Temperature
Hayama observes a slight ascent in average high-temperatures during May, adjusting from a comfortable 17°C (62.6°F) in April to an agreeable 21.2°C (70.2°F). Hayama's temperature during May nights registers a minor decrease to an average low of 17°C (62.6°F).Humidity
In Hayama, Japan, the average relative humidity in May is 74%.Rainfall
In Hayama, in May, it is raining for 11.6 days, with typically 64mm (2.52") of accumulated precipitation. Throughout the year, in Hayama, Japan, there are 150.9 rainfall days, and 867mm (34.13") of precipitation is accumulated.Snowfall
April through December are months without snowfall in Hayama.Sea temperature
In May, the average sea temperature is 19.4°C (66.9°F).Note: Most people find swimming in 19.4°C (66.9°F) unenjoyable. As the water temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes harder.
Daylight
In May, the average length of the day is 14h and 1min.On the first day of the month, sunrise is at 04:50 and sunset at 18:27. On the last day of May, in Hayama, sunrise is at 04:28 and sunset at 18:50 JST.
Sunshine
The average sunshine in May in Hayama, Japan, is 9.5h.UV index
In Hayama, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hayama, Japan
- Average high temperature in May: 21.2°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in May: 17°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in May
Hayama, Japan
- Average pressure in May: 1012mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in May
Hayama, Japan
- Average wind speed in May: 17.7km/h
The windiest month (with the highest average wind speed) is March (20.8km/h).
The calmest month (with the lowest average wind speed) is June (15.9km/h).
Average humidity in May
Hayama, Japan
- Average humidity in May: 74%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is January (61%).
Average rainfall in May
Hayama, Japan
- Average rainfall in May: 64mm
The wettest month (with the highest rainfall) is October (119mm).
The driest months (with the least rainfall) are February and December (39mm).
Average rainfall days in May
Hayama, Japan
- Average rainfall days in May: 11.6 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in May
Hayama, Japan
- Average snowfall in May: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in May
Hayama, Japan
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in May
Hayama, Japan
- Average sea temperature in May: 19.4°C
The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest months (with the lowest average sea temperature) are February and March (16.2°C).
Average daylight in May /
Average sunshine in May
Hayama, Japan
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in May
Hayama, Japan
- Average sunshine days in May: 17.3 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in May
Hayama, Japan
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in May
Hayama, Japan
- Average cloud cover in May: 35
The months with the most cloud cover are March, June and October (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Hayama, Japan
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





