May weather forecast
Itoman, Japan

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Weather in May

The last month of the spring, May, is a moderately hot month in Itoman, Japan, with temperature in the range of an average high of 24.7°C (76.5°F) and an average low of 23.2°C (73.8°F).

Temperature

Entering May, the average high-temperature is recorded at a moderately hot 24.7°C (76.5°F), exhibiting a minimal shift from April's 22.2°C (72°F). Itoman's nighttime temperatures in May reveal a minimal variation from the daytime highs, averaging at a still warm 23.2°C (73.8°F).

Humidity

The average relative humidity in May in Itoman is 82%.

Rainfall

In Itoman, in May, during 18.1 rainfall days, 174mm (6.85") of precipitation is typically accumulated. Throughout the year, in Itoman, there are 226.7 rainfall days, and 1392mm (54.8") of precipitation is accumulated.

Sea temperature

In Itoman, the average seawater temperature in May is 24.6°C (76.3°F).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.6°C (76.3°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

In May, the average length of the day is 13h and 25min.
On the first day of May in Itoman, Japan, sunrise is at 05:51 and sunset at 19:01. On the last day of the month, sunrise is at 05:37 and sunset at 19:16 JST.

Sunshine

In Itoman, the average sunshine in May is 8.3h.

UV index

In Itoman, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the maximum UV index of 6 suggests these recommendations:
Ward off overexposure. Defence against solar harm is crucial. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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Frequently asked questions

What is the usual temperature for Itoman in May?

The high-temperature, in May, in Itoman, records 24.7°C (76.5°F), while the low-temperature is 23.2°C (73.8°F).

What is the average humidity in May in Itoman?

In May, the average relative humidity in Itoman, Japan, is 82%.

How many days does it rain in May in Itoman?

In Itoman, during May, the rain falls for 18.1 days and regularly aggregates up to 174mm (6.85") of precipitation.

What is the water temperature in May in Itoman?

In Itoman, Japan, the average seawater temperature in May is 24.6°C (76.3°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.6°C (76.3°F) water.

What is the average length of the day in May in Itoman?

In Itoman, the average day length in May is 13h and 25min.

When are sunrise and sunset in May in Itoman?

On the first day of May in Itoman, sunrise is at 05:51 and sunset at 19:01. On the last day of the month, sunrise is at 05:37 and sunset at 19:16 JST.

How many hours of sunshine does Itoman have in May?

The average sunshine duration in May in Itoman, Japan, is 8.3h.

What is the UV index intensity in May in Itoman?

In May, the average daily maximum UV index in Itoman is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in May
Itoman, Japan

Average temperature in May - Itoman, Japan
  • Average high temperature in May: 24.7°C

The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (18.9°C).

  • Average low temperature in May: 23.2°C

The month with the highest average low temperature is August (28.3°C).
The coldest month (with the lowest average low temperature) is January (17°C).

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Average pressure in May
Itoman, Japan

Average pressure in May - Itoman, Japan
  • Average pressure in May: 1011.1mbar

The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).

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Average wind speed in May
Itoman, Japan

Average wind speed in May - Itoman, Japan
  • Average wind speed in May: 20.1km/h

The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is May (20.1km/h).

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Average humidity in May
Itoman, Japan

Average humidity in May - Itoman, Japan
  • Average humidity in May: 82%

The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (72%).

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Average rainfall in May
Itoman, Japan

Average rainfall in May - Itoman, Japan
  • Average rainfall in May: 174mm

The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the least rainfall) is February (59mm).

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Average rainfall days in May
Itoman, Japan

Average rainfall days in May - Itoman, Japan
  • Average rainfall days in May: 18.1 days

The month with the highest number of rainy days is June (21.5 days).
The month with the least rainy days is July (16.4 days).

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Average sea temperature in May
Itoman, Japan

Average sea temperature in May - Itoman, Japan
  • Average sea temperature in May: 24.6°C

The best month for swimming (with the highest average sea temperature) is August (28.7°C).
The coldest month (with the lowest average sea temperature) is February (20.9°C).

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Average daylight in May /
Average sunshine in May
Itoman, Japan

Average daylight in May / Average sunshine in May - Itoman, Japan
  • Average daylight in May: 13h and 2min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in May
Itoman, Japan

Average sunshine days in May - Itoman, Japan
  • Average sunshine days in May: 10.7 days

The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is December (5.7 days).

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Average UV index in May
Itoman, Japan

Average UV index in May - Itoman, Japan
  • Average UV index in May: 6

The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in May
Itoman, Japan

Average cloud cover in May - Itoman, Japan
  • Average cloud cover in May: 49

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in May
Itoman, Japan

Average visibility in May - Itoman, Japan
  • Average visibility in May: 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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Itoman, Japan

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