May weather forecastIsumi, Japan
May weather for Isumi, Japan: On the last day of the month, in Isumi, Japan, sunrise is at 04:25 and sunset at 18:47 JST. The last month of the spring, May, is a pleasant month in Isumi, Japan, with an average temperature fluctuating between 17.4°C (63.3°F) and 20.4°C (68.7°F).
May
Weather in May
The last month of the spring, May, is a pleasant month in Isumi, Japan, with an average temperature fluctuating between 17.4°C (63.3°F) and 20.4°C (68.7°F).Temperature
May's arrival coincides with a subtle temperature rise, moving from April's comfortable 16.8°C (62.2°F) to a pleasant 20.4°C (68.7°F). Isumi's May nights demonstrate minimal variation from the daytime temperatures, with an average of 17.4°C (63.3°F).Humidity
In Isumi, Japan, the average relative humidity in May is 77%.Rainfall
In Isumi, in May, it is raining for 13 days, with typically 88mm (3.46") of accumulated precipitation. Throughout the year, there are 178.9 rainfall days, and 1201mm (47.28") of precipitation is accumulated.Snowfall
In Isumi, snow does not fall in March through December.Daylight
In May, the average length of the day in Isumi, Japan, is 14h and 1min.On the first day of the month, sunrise is at 04:46 and sunset at 18:24. On the last day of May, sunrise is at 04:25 and sunset at 18:47 JST.
Sunshine
In May, the average sunshine is 9.2h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Isumi, Japan
- Average high temperature in May: 20.4°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 (10.6°C).
- Average low temperature in May: 17.4°C
The month with the highest average low temperature is August (25.6°C).
The coldest month (with the lowest average low temperature) is January (7°C).
Average pressure in May
Isumi, Japan
- Average pressure in May: 1012mbar
The month with the highest atmospheric pressure is November (1017.6mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in May
Isumi, Japan
- Average wind speed in May: 20.6km/h
The windiest month (with the highest average wind speed) is March (25.5km/h).
The calmest month (with the lowest average wind speed) is June (18.7km/h).
Average humidity in May
Isumi, Japan
- Average humidity in May: 77%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (63%).
Average rainfall in May
Isumi, Japan
- Average rainfall in May: 88mm
The wettest month (with the highest rainfall) is October (164mm).
The driest month (with the least rainfall) is January (58mm).
Average rainfall days in May
Isumi, Japan
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is October (18.5 days).
The month with the least rainy days is January (9.6 days).
Average snowfall days in May
Isumi, Japan
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Isumi, 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 12min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Isumi, Japan
- Average sunshine days in May: 16.3 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is October (10.2 days).
Average UV index in May
Isumi, Japan
- Average UV index in May: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January and February (UV index 3).
Average cloud cover in May
Isumi, Japan
- Average cloud cover in May: 38
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Isumi, 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).
