May weather forecast
Kosai, Japan

englishespañol中文
Share

Weather in May

May, the last month of the spring in Kosai, is an agreeable month, with an average temperature fluctuating between 20.9°C (69.6°F) and 15.3°C (59.5°F).

Temperature

May signifies a subtle uplift in the average high-temperature, adjusting from a comfortable 16.3°C (61.3°F) in April to a pleasant 20.9°C (69.6°F). During May, Kosai sees a mean low-temperature of 15.3°C (59.5°F).

Humidity

In Kosai, the average relative humidity in May is 73%.

Rainfall

In Kosai, Japan, during May, the rain falls for 11.9 days and regularly aggregates up to 95mm (3.74") of precipitation. Throughout the year, there are 163.7 rainfall days, and 1017mm (40.04") of precipitation is accumulated.

Snowfall

In Kosai, Japan, snow does not fall in March through November.

Sea temperature

In Kosai, the average seawater temperature in May is 19°C (66.2°F).
Note: For the majority of people, swimming in water at 19°C (66.2°F) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in May is 13h and 59min.
On the first day of May, sunrise is at 04:59 and sunset at 18:34. On the last day of the month, sunrise is at 04:38 and sunset at 18:57 JST.

Sunshine

The average sunshine in May in Kosai is 9.6h.

UV index

The average daily maximum UV index in May in Kosai is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 5 in May leads to these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jan 31, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the usual temperature for Kosai in May?

Kosai in May has an average high-temperature of 20.9°C (69.6°F) and an average low-temperature of 15.3°C (59.5°F).

What is the average humidity in May in Kosai?

The average relative humidity in May is 73%.

How many days does it rain in May in Kosai?

In Kosai, in May, during 11.9 rainfall days, 95mm (3.74") of precipitation is typically accumulated.

When it does not snow in Kosai?

March through November are months without snowfall.

How cold is the water in May in Kosai?

In May, the average sea temperature is 19°C (66.2°F). For swimming, a surface water temperature of 19°C (66.2°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 May in Kosai?

In Kosai, Japan, the average day length in May is 13h and 59min.

When are sunrise and sunset in May in Kosai?

In May, on the first day of the month, sunrise is at 04:59 and sunset at 18:34. On the last day of the month, sunrise is at 04:38 and sunset at 18:57 JST.

How many hours of sunshine does Kosai have in May?

In May, the average sunshine duration is 9.6h.

What is the UV index reading in May in Kosai?

The average daily maximum UV index in May in Kosai is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Kosai, Japan

Average temperature in May - Kosai, Japan
  • Average high temperature in May: 20.9°C

The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.4°C).

  • Average low temperature in May: 15.3°C

The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (3.5°C).

Average pressure in May
Kosai, Japan

Average pressure in May - Kosai, Japan
  • Average pressure in May: 1012.2mbar

The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in May
Kosai, Japan

Average wind speed in May - Kosai, Japan
  • Average wind speed in May: 15.3km/h

The windiest month (with the highest average wind speed) is January (24.2km/h).
The calmest months (with the lowest average wind speed) are July and August (12.8km/h).

Average humidity in May
Kosai, Japan

Average humidity in May - Kosai, Japan
  • Average humidity in May: 73%

The month with the highest relative humidity is July (83%).
The months with the lowest relative humidity are January and February (67%).

Average rainfall in May
Kosai, Japan

Average rainfall in May - Kosai, Japan
  • Average rainfall in May: 95mm

The wettest month (with the highest rainfall) is July (190mm).
The driest month (with the least rainfall) is January (27mm).

Average rainfall days in May
Kosai, Japan

Average rainfall days in May - Kosai, Japan
  • Average rainfall days in May: 11.9 days

The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in May
Kosai, Japan

Average snowfall in May - Kosai, Japan
  • Average snowfall in May: 0mm

The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in May
Kosai, Japan

Average snowfall days in May - Kosai, Japan
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in May
Kosai, Japan

Average sea temperature in May - Kosai, Japan
  • Average sea temperature in May: 19°C

The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).

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

Average daylight in May / Average sunshine in May - Kosai, Japan
  • Average daylight in May: 14h 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: 9h and 54min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).

Average sunshine days in May
Kosai, Japan

Average sunshine days in May - Kosai, Japan
  • Average sunshine days in May: 17.1 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (8.7 days).

Average UV index in May
Kosai, Japan

Average UV index in May - Kosai, Japan
  • Average UV index in May: 5

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in May
Kosai, Japan

Average cloud cover in May - Kosai, Japan
  • Average cloud cover in May: 34

The month with the most cloud cover is June (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 28).

Average visibility in May
Kosai, Japan

Average visibility in May - Kosai, Japan
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).

Kosai, Japan

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location