May weather forecastMuroran, Japan

May

Weather in May

May, the last month of the spring in Muroran, is a mild month, with an average temperature ranging between min 7.2°C (45°F) and max 13.7°C (56.7°F).

Temperature

With the onset of May, the average high-temperature slightly shifts from April's chilly 7.8°C (46°F) to a refreshing 13.7°C (56.7°F). Muroran's temperature lowers to a mean of 7.2°C (45°F) during the nights in May.

Humidity

The average relative humidity in May is 81%.

Rainfall

In May, the rain falls for 15.1 days. Throughout May, 62mm (2.44") of precipitation is accumulated. Throughout the year, there are 173.2 rainfall days, and 852mm (33.54") of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Muroran.

Daylight

In Muroran, the average length of the day in May is 14h and 35min.
On the first day of May in Muroran, sunrise is at 04:31 and sunset at 18:35. On the last day of the month, sunrise is at 04:02 and sunset at 19:05 JST.

Sunshine

The average sunshine in May in Muroran is 8.1h.

UV index

In Muroran, Japan, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Undertake protective steps - Preventing sun damage is advised. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

In May, the average high-temperature and low-temperature in Muroran are 13.7°C (56.7°F) and 7.2°C (45°F) respectively.

In May, the average relative humidity in Muroran, Japan, is 81%.

In May, the rain falls for 15.1 days. Throughout May, 62mm (2.44") of precipitation is accumulated.

May through September are months without snowfall.

In May, in Muroran, it doesn't snow. April is the latest month when it typically snows.

In May, the average day length is 14h and 35min.

In May, on the first day of the month, sunrise is at 04:31 and sunset at 18:35. On the last day of the month, sunrise is at 04:02 and sunset at 19:05 JST.

In Muroran, the average sunshine duration in May is 8.1h.

In May, the average daily maximum UV index in Muroran is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Muroran, Japan

  • Average high temperature in May: 13.7°C

The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (-1.9°C).

  • Average low temperature in May: 7.2°C

The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is February (-7°C).

Average pressure in May
Muroran, Japan

  • Average pressure in May: 1010.6mbar

The month with the highest atmospheric pressure is November (1016.6mbar).
The month with the lowest atmospheric pressure is July (1008.7mbar).

Average wind speed in May
Muroran, Japan

  • Average wind speed in May: 12.4km/h

The windiest month (with the highest average wind speed) is December (19.2km/h).
The calmest month (with the lowest average wind speed) is July (10.2km/h).

Average humidity in May
Muroran, Japan

  • Average humidity in May: 81%

The month with the highest relative humidity is July (88%).
The month with the lowest relative humidity is October (77%).

Average rainfall in May
Muroran, Japan

  • Average rainfall in May: 62mm

The wettest month (with the highest rainfall) is August (115mm).
The driest month (with the least rainfall) is January (40mm).

Average rainfall days in May
Muroran, Japan

  • Average rainfall days in May: 15.1 days

The month with the highest number of rainy days is August (19.7 days).
The month with the least rainy days is February (8.4 days).

Average snowfall in May
Muroran, Japan

  • Average snowfall in May: 0mm

The month with the highest snowfall is February (218mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in May
Muroran, Japan

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

  • Average daylight in May: 14h and 36min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 6min

The month with the most sunshine is April (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).

Average sunshine days in May
Muroran, Japan

  • Average sunshine days in May: 14.2 days

The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is December (4.4 days).

Average UV index in May
Muroran, Japan

  • Average UV index in May: 4

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Muroran, Japan

  • Average cloud cover in May: 47

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is October (Cloud cover 40).

Average visibility in May
Muroran, Japan

  • Average visibility in May: 9km

The months with the highest visibility are March, April, May, September, October and November (9km).
The month with the lowest visibility is July (7km).