April weather forecast
Katsuura, Japan

April

Weather in April

April in Katsuura, Japan, is a refreshing spring month, with an average temperature varying between 16.8°C (62.2°F) and 13.3°C (55.9°F).

Temperature

The shift into April is characterized by a subtle rise in the average high-temperature, transitioning from March's moderate 13.6°C (56.5°F) to a comfortable 16.8°C (62.2°F). Nights in April showcase an average temperature of 13.3°C (55.9°F), slightly cooler than the daytime.

Humidity

The average relative humidity in April is 71%.

Rainfall

In Katsuura, during April, the rain falls for 16.1 days and regularly aggregates up to 97mm (3.82") of precipitation. Throughout the year, in Katsuura, there are 178.9 rainfall days, and 1201mm (47.28") of precipitation is accumulated.

Snowfall

March through December are months without snowfall in Katsuura.

Sea temperature

In April, the average sea temperature is 18.1°C (64.6°F).
Note: The majority find it unenjoyable to swim in 18.1°C (64.6°F). Breathing becomes tougher as the water temperature descends under 21°C (69.8°F).

Daylight

The average length of the day in April in Katsuura is 13h and 5min.
On the first day of April, sunrise is at 05:25 and sunset at 17:59. On the last day of the month, sunrise is at 04:48 and sunset at 18:23 JST.

Sunshine

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

UV index

In April, the average daily maximum UV index in Katsuura 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 maximum UV index of 5 in April interprets into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

What is the temperature in April in Katsuura?
Katsuura in April has an average high-temperature of 16.8°C (62.2°F) and an average low-temperature of 13.3°C (55.9°F).
What is the average humidity in April in Katsuura?
In Katsuura, the average relative humidity in April is 71%.
How many days does it rain in April in Katsuura?
In Katsuura, in April, it is raining for 16.1 days, with typically 97mm (3.82") of accumulated precipitation.
When it does not snow in Katsuura?
March through December are months without snowfall in Katsuura, Japan.
What is the sea water temperature in April in Katsuura?
In Katsuura, in April, the average water temperature is 18.1°C (64.6°F). For swimming, a surface water temperature of 18.1°C (64.6°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).
What is the average length of the day in April in Katsuura?
The average day length in April in Katsuura, Japan, is 13h and 5min.
What time are sunrise and sunset in April in Katsuura?
In April, on the first day of the month, sunrise is at 05:25 and sunset at 17:59. On the last day of the month, in Katsuura, sunrise is at 04:48 and sunset at 18:23 JST.
How long on average sun shines in April in Katsuura?
In Katsuura, Japan, the average sunshine duration in April is 8.3h.
What is the UV index intensity in April in Katsuura?
The average daily maximum UV index in April in Katsuura is 5. 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 days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in April - Katsuura, Japan
Average temperature in April
Katsuura, Japan
  • Average high temperature in April: 16.8°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 April: 13.3°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 April - Katsuura, Japan
Average pressure in April
Katsuura, Japan
  • Average pressure in April: 1014.1mbar

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 April - Katsuura, Japan
Average wind speed in April
Katsuura, Japan
  • Average wind speed in April: 23.9km/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 April - Katsuura, Japan
Average humidity in April
Katsuura, Japan
  • Average humidity in April: 71%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (63%).

Average rainfall in April - Katsuura, Japan
Average rainfall in April
Katsuura, Japan
  • Average rainfall in April: 97mm

The wettest month (with the highest rainfall) is October (164mm).
The driest month (with the least rainfall) is January (58mm).

Average rainfall days in April - Katsuura, Japan
Average rainfall days in April
Katsuura, Japan
  • Average rainfall days in April: 16.1 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 April - Katsuura, Japan
Average snowfall days in April
Katsuura, Japan
  • Average snowfall days in April: 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 sea temperature in April - Katsuura, Japan
Average sea temperature in April
Katsuura, Japan
  • Average sea temperature in April: 18.1°C

The best months for swimming (with the highest average sea temperature) are August and September (26.3°C).
The coldest month (with the lowest average sea temperature) is February (17°C).

Average daylight in April / Average sunshine in April - Katsuura, Japan
Average daylight in April /
Average sunshine in April
Katsuura, Japan
  • Average daylight in April: 13h and 1min

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 April: 8h and 2min

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 April - Katsuura, Japan
Average sunshine days in April
Katsuura, Japan
  • Average sunshine days in April: 12.1 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 April - Katsuura, Japan
Average UV index in April
Katsuura, Japan
  • Average UV index in April: 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 April - Katsuura, Japan
Average cloud cover in April
Katsuura, Japan
  • Average cloud cover in April: 44

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 April - Katsuura, Japan
Average visibility in April
Katsuura, Japan
  • Average visibility in April: 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).

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