April weather forecast
Isahaya, Japan

April

Weather in April

April is a refreshing spring month in Isahaya, Japan, with an average temperature ranging between min 11°C (51.8°F) and max 18.3°C (64.9°F).

Temperature

Observing a slight rise in April, the average high-temperature shifts from March's moderate 13.8°C (56.8°F) to a comfortable 18.3°C (64.9°F). An average low-temperature of 11°C (51.8°F) is recorded during the nights in April in Isahaya.

Humidity

In Isahaya, Japan, the average relative humidity in April is 73%.

Rainfall

In Isahaya, during April, the rain falls for 13.7 days and regularly aggregates up to 92mm (3.62") of precipitation. Throughout the year, there are 167.1 rainfall days, and 1341mm (52.8") of precipitation is accumulated.

Snowfall

In Isahaya, snow does not fall in March through November.

Daylight

In April, the average length of the day in Isahaya is 13h and 0min.
On the first day of the month, sunrise is at 06:07 and sunset at 18:39. On the last day of April, sunrise is at 05:33 and sunset at 19:00 JST.

Sunshine

In Isahaya, the average sunshine in April is 8.3h.

UV index

In Isahaya, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 4 in April translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

What is the usual temperature for Isahaya in April?
In April, in Isahaya, the average high-temperature is 18.3°C (64.9°F), and the average low-temperature is 11°C (51.8°F).
What is the average humidity in April in Isahaya?
In April, the average relative humidity in Isahaya is 73%.
How many days does it rain in April in Isahaya?
In Isahaya, Japan, during April, the rain falls for 13.7 days and regularly aggregates up to 92mm (3.62") of precipitation.
When it does not snow in Isahaya?
March through November are months without snowfall in Isahaya.
How many hours of daylight does Isahaya have in April?
In April, the average day length in Isahaya is 13h and 0min.
When is the sunrise / sunset in April in Isahaya?
In April, on the first day of the month, sunrise is at 06:07 and sunset at 18:39. On the last day of the month, in Isahaya, Japan, sunrise is at 05:33 and sunset at 19:00 JST.
How long on average sun shines in April in Isahaya?
In April, the average sunshine duration in Isahaya is 8.3h.
What is the UV index intensity in April in Isahaya?
In Isahaya, Japan, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in April - Isahaya, Japan
Average temperature in April
Isahaya, Japan
  • Average high temperature in April: 18.3°C

The warmest month (with the highest average high temperature) is August (30.7°C).
The month with the lowest average high temperature is January (9.4°C).

  • Average low temperature in April: 11°C

The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (4.4°C).

Average pressure in April - Isahaya, Japan
Average pressure in April
Isahaya, Japan
  • Average pressure in April: 1015.3mbar

The month with the highest atmospheric pressure is January (1022.1mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in April - Isahaya, Japan
Average wind speed in April
Isahaya, Japan
  • Average wind speed in April: 11km/h

The windiest month (with the highest average wind speed) is March (12.3km/h).
The calmest month (with the lowest average wind speed) is June (8.3km/h).

Average humidity in April - Isahaya, Japan
Average humidity in April
Isahaya, Japan
  • Average humidity in April: 73%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is March (72%).

Average rainfall in April - Isahaya, Japan
Average rainfall in April
Isahaya, Japan
  • Average rainfall in April: 92mm

The wettest month (with the highest rainfall) is July (260mm).
The driest month (with the least rainfall) is January (39mm).

Average rainfall days in April - Isahaya, Japan
Average rainfall days in April
Isahaya, Japan
  • Average rainfall days in April: 13.7 days

The month with the highest number of rainy days is July (22 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in April - Isahaya, Japan
Average snowfall in April
Isahaya, Japan
  • Average snowfall in April: 0mm

The months with the highest snowfall are January and February (3mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in April - Isahaya, Japan
Average snowfall days in April
Isahaya, Japan
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in April / Average sunshine in April - Isahaya, Japan
Average daylight in April /
Average sunshine in April
Isahaya, Japan
  • Average daylight in April: 13h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in April: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).

Average sunshine days in April - Isahaya, Japan
Average sunshine days in April
Isahaya, Japan
  • Average sunshine days in April: 14.9 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (6.8 days).

Average UV index in April - Isahaya, Japan
Average UV index in April
Isahaya, Japan
  • Average UV index in April: 4

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in April - Isahaya, Japan
Average cloud cover in April
Isahaya, Japan
  • Average cloud cover in April: 41

The month with the most cloud cover is June (Cloud cover 54).
The month with the least cloud cover is October (Cloud cover 34).

Average visibility in April - Isahaya, Japan
Average visibility in April
Isahaya, Japan
  • Average visibility in April: 9km

The months with the highest visibility are January, February, March, October, November and December (10km).
The months with the lowest visibility are June and July (8km).

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