May weather forecastRoppongi, Japan
May
Weather in May
May, the last month of the spring in Roppongi, is a pleasant month, with temperature in the range of an average high of 22.7°C (72.9°F) and an average low of 16.1°C (61°F).Temperature
In Roppongi, the onset of May comes with an increased average high-temperature, moving from April's enjoyable 17.6°C (63.7°F) to an agreeable 22.7°C (72.9°F). The temperature dips to an average of 16.1°C (61°F) during May nights.Humidity
In May, the average relative humidity in Roppongi is 70%.Rainfall
In Roppongi, during May, the rain falls for 10.2 days and regularly aggregates up to 26mm (1.02") of precipitation. In Roppongi, during the entire year, the rain falls for 125.3 days and collects up to 359mm (14.13") of precipitation.Snowfall
In Roppongi, snow does not fall in March through December.Daylight
In Roppongi, the average length of the day in May is 14h and 3min.On the first day of May in Roppongi, Japan, sunrise is at 04:48 and sunset at 18:27. On the last day of the month, sunrise is at 04:26 and sunset at 18:50 JST.
Sunshine
In May, the average sunshine is 9.3h.UV index
In Roppongi, Japan, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Roppongi, Japan
- Average high temperature in May: 22.7°C
The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in May: 16.1°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (3°C).
Average pressure in May
Roppongi, Japan
- Average pressure in May: 1012mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in May
Roppongi, Japan
- Average wind speed in May: 14km/h
The windiest month (with the highest average wind speed) is April (15.6km/h).
The calmest month (with the lowest average wind speed) is November (12.3km/h).
Average humidity in May
Roppongi, Japan
- Average humidity in May: 70%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).
Average rainfall in May
Roppongi, Japan
- Average rainfall in May: 26mm
The wettest month (with the highest rainfall) is September (54mm).
The driest month (with the least rainfall) is February (10mm).
Average rainfall days in May
Roppongi, Japan
- Average rainfall days in May: 10.2 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Roppongi, Japan
- Average snowfall in May: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in May
Roppongi, Japan
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Roppongi, 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 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in May
Roppongi, Japan
- Average sunshine days in May: 18.5 days
The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in May
Roppongi, Japan
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Roppongi, Japan
- Average cloud cover in May: 36
The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility in May
Roppongi, Japan
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
