May weather forecastYonaguni, Japan

May

Weather in May

May, the last month of the spring in Yonaguni, is another warm month, with an average temperature ranging between min 23.2°C (73.8°F) and max 27.7°C (81.9°F).

Temperature

The commencement of May records an average high-temperature of a still warm 27.7°C (81.9°F), barely varying from April's 25.2°C (77.4°F). In Yonaguni, May is characterized by an average low-temperature of 23.2°C (73.8°F), indicating a minor drop from daytime highs.

Heat index

The heat index value during May is evaluated at a hot 31°C (87.8°F). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

In May, the average relative humidity is 81%.

Rainfall

In Yonaguni, in May, 207mm (8.15") of precipitation is typically accumulated. During the entire year, Yonaguni aggregates up to 2353mm (92.64") of precipitation.

Sea temperature

In Yonaguni, Japan, in May, the average water temperature is 27.3°C (81.1°F).
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.

Daylight

In Yonaguni, the average length of the day in May is 13h and 20min.
On the first day of the month, sunrise is at 06:12 and sunset at 19:17. On the last day of May, in Yonaguni, sunrise is at 05:59 and sunset at 19:32 JST.

Sunshine

In May, the average sunshine is 4.5h.

Frequently asked questions

The high-temperature in Yonaguni, Japan, during May is 27.7°C (81.9°F) and the low-temperature is 23.2°C (73.8°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in May is evaluated at 31°C (87.8°F).

The average relative humidity in May in Yonaguni is 81%.

During May, Yonaguni regularly aggregates up to 207mm (8.15") of precipitation.

In Yonaguni, in May, the average water temperature is 27.3°C (81.1°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

In May, the average day length in Yonaguni is 13h and 20min.

In May, on the first day of the month, sunrise is at 06:12 and sunset at 19:17. On the last day of the month, in Yonaguni, Japan, sunrise is at 05:59 and sunset at 19:32 JST.

The average sunshine duration in May is 4.5h.
Average high temperature
Average low temperature
Average humidity
Average rainfall
Average sea temperature
Average sunshine

Average temperature in May
Yonaguni, Japan

  • Average high temperature in May: 27.7°C

The warmest month (with the highest average high temperature) is July (31.4°C).
The month with the lowest average high temperature is January (20.5°C).

  • Average low temperature in May: 23.2°C

The month with the highest average low temperature is July (26.6°C).
The coldest month (with the lowest average low temperature) is January (16.4°C).

Average humidity in May
Yonaguni, Japan

  • Average humidity in May: 81%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is December (72%).

Average rainfall in May
Yonaguni, Japan

  • Average rainfall in May: 207.4mm

The wettest month (with the highest rainfall) is September (293.2mm).
The driest month (with the least rainfall) is July (138.5mm).

Average sea temperature in May
Yonaguni, Japan

  • Average sea temperature in May: 27.3°C

The best month for swimming (with the highest average sea temperature) is August (29.2°C).
The coldest month (with the lowest average sea temperature) is March (23.8°C).

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

  • Average daylight in May: 13h and 18min

The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).

  • Average sunshine in May: 4h and 30min

The month with the most sunshine is July (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).