August weather forecastTsunoshima, Japan

August

Weather in August

August, the last month of the summer in Tsunoshima, is also a moderately hot month, with temperature in the range of an average low of 24.7°C (76.5°F) and an average high of 29.9°C (85.8°F).

Temperature

August is the month when Tsunoshima's temperatures reach their peak, with averages of 29.9°C (85.8°F) and lows of 24.7°C (76.5°F).

Heat index

During August, the heat index is appraised at a very hot 37°C (98.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Tsunoshima, the average relative humidity in August is 79%.

Rainfall

In Tsunoshima, during August, the rain falls for 14.6 days and regularly aggregates up to 126mm (4.96") of precipitation. Throughout the year, there are 167.1 rainfall days, and 1059mm (41.69") of precipitation is accumulated.

Snowfall

In Tsunoshima, snow does not fall in March through November.

Daylight

The average length of the day in August is 13h and 25min.
On the first day of August, sunrise is at 05:27 and sunset at 19:18. On the last day of the month, sunrise is at 05:49 and sunset at 18:44 JST.

Sunshine

The month with the most sunshine is August, with an average of 10.6h of sunshine.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

August tends to be the warmest month, with temperatures averaging a daily high of 29.9°C (85.8°F) and a low of 24.7°C (76.5°F).

The high-temperature, in August, in Tsunoshima, is 29.9°C (85.8°F), while the low-temperature averages to 24.7°C (76.5°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 37°C (98.6°F).

In August, the average relative humidity in Tsunoshima is 79%.

In Tsunoshima, in August, during 14.6 rainfall days, 126mm (4.96") of precipitation is typically accumulated.

March through November are months without snowfall.

The average day length in August is 13h and 25min.

On the first day of August, sunrise is at 05:27 and sunset at 19:18. On the last day of the month, sunrise is at 05:49 and sunset at 18:44 JST.

August has the most sunshine of the year, with an average of 10.6h of sunshine.

In August, the average sunshine duration is 10.6h.

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Tsunoshima, Japan

  • Average high temperature in August: 29.9°C

The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in August: 24.7°C

The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (5.1°C).

Average pressure in August
Tsunoshima, Japan

  • Average pressure in August: 1008.7mbar

The month with the highest atmospheric pressure is January (1021.8mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).

Average wind speed in August
Tsunoshima, Japan

  • Average wind speed in August: 11.1km/h

The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is June (10km/h).

Average humidity in August
Tsunoshima, Japan

  • Average humidity in August: 79%

The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January and February (69%).

Average rainfall in August
Tsunoshima, Japan

  • Average rainfall in August: 126mm

The wettest month (with the highest rainfall) is July (214mm).
The driest months (with the least rainfall) are January and November (48mm).

Average rainfall days in August
Tsunoshima, Japan

  • Average rainfall days in August: 14.6 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is May (9.5 days).

Average snowfall in August
Tsunoshima, Japan

  • Average snowfall in August: 0mm

The month with the highest snowfall is January (15mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in August
Tsunoshima, Japan

  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in August /
Average sunshine in August
Tsunoshima, Japan

  • Average daylight in August: 13h and 24min

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 August: 10h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Tsunoshima, Japan

  • Average sunshine days in August: 14.6 days

The month with the most sunshine days is May (20.6 days).
The month with the least sunshine days is December (8.5 days).

Average UV index in August
Tsunoshima, Japan

  • Average UV index in August: 6

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

Average cloud cover in August
Tsunoshima, Japan

  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in August
Tsunoshima, Japan

  • Average visibility in August: 9km

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