April weather forecastIyo, Japan
April
Weather in April
April is a comfortable spring month in Iyo, Japan, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 16.1°C (61°F).Temperature
April's arrival is noted with a slight increase in the average high-temperature, moving from a cool 12°C (53.6°F) in March to a refreshing 16.1°C (61°F). The temperature in Iyo lowers to an average of 9.7°C (49.5°F) during April nights.Humidity
The average relative humidity in April is 74%.Rainfall
In Iyo, Japan, in April, it is raining for 12.4 days, with typically 45mm (1.77") of accumulated precipitation. Throughout the year, in Iyo, there are 162.8 rainfall days, and 749mm (29.49") of precipitation is accumulated.Snowfall
In Iyo, snow does not fall in March through November.Sea temperature
In Iyo, the average seawater temperature in April is 16.5°C (61.7°F).Note: Most individuals do not find swimming at 16.5°C (61.7°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.
Daylight
The average length of the day in April in Iyo is 13h and 2min.On the first day of April in Iyo, sunrise is at 05:56 and sunset at 18:29. On the last day of the month, sunrise is at 05:21 and sunset at 18:51 JST.
Sunshine
The average sunshine in April is 9.4h.UV index
In April, the average daily maximum UV index in Iyo, Japan, is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, a daily maximum UV index of 4 leads to the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. 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 April
Iyo, Japan
- Average high temperature in April: 16.1°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8°C).
- Average low temperature in April: 9.7°C
The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in April
Iyo, Japan
- Average pressure in April: 1015.1mbar
The month with the highest atmospheric pressure is January (1021mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in April
Iyo, Japan
- Average wind speed in April: 9.5km/h
The windiest month (with the highest average wind speed) is January (12.2km/h).
The calmest month (with the lowest average wind speed) is June (6.6km/h).
Average humidity in April
Iyo, Japan
- Average humidity in April: 74%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (72%).
Average rainfall in April
Iyo, Japan
- Average rainfall in April: 45mm
The wettest month (with the highest rainfall) is June (149mm).
The driest month (with the least rainfall) is January (24mm).
Average rainfall days in April
Iyo, Japan
- Average rainfall days in April: 12.4 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
Iyo, Japan
- Average snowfall in April: 0mm
The month with the highest snowfall is December (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in April
Iyo, Japan
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in April
Iyo, Japan
- Average sea temperature in April: 16.5°C
The best month for swimming (with the highest average sea temperature) is August (27.2°C).
The coldest month (with the lowest average sea temperature) is February (14.7°C).
Average daylight in April /
Average sunshine in April
Iyo, Japan
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 9h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in April
Iyo, Japan
- Average sunshine days in April: 14.9 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (6.4 days).
Average UV index in April
Iyo, Japan
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in April
Iyo, Japan
- Average cloud cover in April: 35
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Iyo, Japan
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).
