May weather forecastChiba, Japan
May
Weather in May
Chiba starts to warm up significantly in May with the high temperature increasing to 21.8°C (71.2°F). More precipitation is observed this month, with rainfall amounting to 73mm (2.87") over 12.7 days of the month. The month bid farewell to the relatively moderate humidity of spring as the average relative humidity rises to 74%. The blend of increased daylight and warm temperatures make May an appealing time for outdoor activities throughout Chiba. Flowers are in full bloom, providing a colorful background to the city's bustling life.Temperature
May in Chiba, Japan, comes with a subtle rise, with the average high-temperature adjusting from a refreshing 17.2°C (63°F) in April to an agreeable 21.8°C (71.2°F). In the month of May, Chiba experiences an average low-temperature of 16.3°C (61.3°F).Humidity
In May, the average relative humidity in Chiba is 74%.Rainfall
In Chiba, in May, it is raining for 12.7 days, with typically 73mm (2.87") of accumulated precipitation. Throughout the year, in Chiba, Japan, there are 162.9 rainfall days, and 921mm (36.26") of precipitation is accumulated.Snowfall
March through December are months without snowfall in Chiba.Sea temperature
In May, the average sea temperature in Chiba is 18.4°C (65.1°F).Note: For swimming, a surface water temperature of 18.4°C (65.1°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
In May, the average length of the day in Chiba, Japan, is 14h and 2min.On the first day of May, sunrise is at 04:47 and sunset at 18:25. On the last day of the month, sunrise is at 04:25 and sunset at 18:49 JST.
Sunshine
In Chiba, the average sunshine in May is 9.1h.UV index
In Chiba, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 in May translates into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Chiba, Japan
- Average high temperature in May: 21.8°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in May: 16.3°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).
Average pressure in May
Chiba, Japan
- Average pressure in May: 1011.9mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in May
Chiba, Japan
- Average wind speed in May: 15.4km/h
The windiest month (with the highest average wind speed) is March (17.4km/h).
The calmest month (with the lowest average wind speed) is June (13.4km/h).
Average humidity in May
Chiba, Japan
- Average humidity in May: 74%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is January (62%).
Average rainfall in May
Chiba, Japan
- Average rainfall in May: 73mm
The wettest month (with the highest rainfall) is October (124mm).
The driest month (with the least rainfall) is January (41mm).
Average rainfall days in May
Chiba, Japan
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in May
Chiba, Japan
- Average snowfall in May: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in May
Chiba, Japan
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in May
Chiba, Japan
- Average sea temperature in May: 18.4°C
The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (14.4°C).
Average daylight in May /
Average sunshine in May
Chiba, 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 6min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in May
Chiba, Japan
- Average sunshine days in May: 16.2 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in May
Chiba, 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, March, November and December (UV index 3).
Average cloud cover in May
Chiba, Japan
- Average cloud cover in May: 38
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 32).
Average visibility in May
Chiba, 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).





