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 sea temperature 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
May
Weather in May
Temperature
The onset of May marks an increase in the average high-temperature, moving from a refreshing 17.3°C (63.1°F) in April to an agreeable 22.5°C (72.5°F). Hekinan's average low-temperature in the month of May is recorded at a moderate 14.8°C (58.6°F).Humidity
In May, the average relative humidity in Hekinan, Japan, is 71%.Rainfall
In Hekinan, in May, during 11.8 rainfall days, 82mm (3.23") of precipitation is typically accumulated. In Hekinan, during the entire year, the rain falls for 156 days and collects up to 899mm (35.39") of precipitation.Snowfall
March through November are months without snowfall in Hekinan.Sea temperature
In Hekinan, Japan, the average seawater temperature in May is 18.7°C (65.7°F).Note: For swimming, a surface water temperature of 18.7°C (65.7°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
Daylight
The average length of the day in May is 13h and 59min.On the first day of the month, sunrise is at 05:01 and sunset at 18:37. On the last day of May, sunrise is at 04:39 and sunset at 18:59 JST.
Sunshine
The average sunshine in May is 9.6h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 5 during May translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Hekinan in May?
What is the average humidity in May in Hekinan?
How many days does it rain in May in Hekinan?
When it does not snow in Hekinan?
What is the sea water temperature in May in Hekinan?
What is the average length of the day in May in Hekinan?
What time are sunrise and sunset in May in Hekinan?
How many hours of sunshine does Hekinan have in May?
How high is the UV index in May in Hekinan?
Average temperature in May
Hekinan, Japan
- Average high temperature in May: 22.5°C
The warmest month (with the highest average high temperature) is August (31.4°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in May: 14.8°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (2.6°C).
Average pressure in May
Hekinan, Japan
- Average pressure in May: 1012.3mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in May
Hekinan, Japan
- Average wind speed in May: 10.8km/h
The windiest month (with the highest average wind speed) is January (14.3km/h).
The calmest month (with the lowest average wind speed) is July (9.1km/h).
Average humidity in May
Hekinan, Japan
- Average humidity in May: 71%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is February (69%).
Average rainfall in May
Hekinan, Japan
- Average rainfall in May: 82mm
The wettest month (with the highest rainfall) is July (161mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days in May
Hekinan, Japan
- Average rainfall days in May: 11.8 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in May
Hekinan, Japan
- Average snowfall in May: 0mm
The month with the highest snowfall is January (15mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Hekinan, Japan
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (2.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in May
Hekinan, Japan
- Average sea temperature in May: 18.7°C
The best month for swimming (with the highest average sea temperature) is August (27.1°C).
The coldest months (with the lowest average sea temperature) are February and March (14.6°C).
Average daylight in May /
Average sunshine in May
Hekinan, 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 54min).
- Average sunshine in May: 9h and 4min
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 48min).
Average sunshine days in May
Hekinan, Japan
- Average sunshine days in May: 17.5 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in May
Hekinan, Japan
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in May
Hekinan, Japan
- Average cloud cover in May: 35
The month with the most cloud cover is July (Cloud cover 43).
The month with the least cloud cover is November (Cloud cover 31).
Average visibility in May
Hekinan, Japan
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
