August weather forecastKaratsu, Japan

August

Weather in August

The last month of the summer, August, is another warm month in Karatsu, Japan, with an average temperature ranging between min 24.6°C (76.3°F) and max 29.3°C (84.7°F).

Temperature

August is Karatsu's warmest month, registering average high temperatures of 29.3°C (84.7°F) and lows of 24.6°C (76.3°F).

Heat index

For August, the heat index is computed to be a sweltering 36°C (96.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' 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. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in August in Karatsu is 81%.

Rainfall

In August, the rain falls for 15.8 days. Throughout August, 60mm (2.36") of precipitation is accumulated. Throughout the year, there are 149.2 rainfall days, and 456mm (17.95") of precipitation is accumulated.

Snowfall

March through November are months without snowfall in Karatsu.

Daylight

The average length of the day in August is 13h and 22min.
On the first day of August in Karatsu, Japan, sunrise is at 05:32 and sunset at 19:20. On the last day of the month, sunrise is at 05:53 and sunset at 18:47 JST.

Sunshine

The month with the most sunshine is August, with an average of 10.1h 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 health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

August is the warmest month in Karatsu, Japan, with an average high-temperature of 29.3°C (84.7°F) and an average low-temperature of 24.6°C (76.3°F).

The high-temperature in Karatsu during August is 29.3°C (84.7°F) and the low-temperature is 24.6°C (76.3°F). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 36°C (96.8°F).

In August, the average relative humidity in Karatsu, Japan, is 81%.

In Karatsu, during August, the rain falls for 15.8 days and regularly aggregates up to 60mm (2.36") of precipitation.

March through November are months without snowfall in Karatsu, Japan.

In August, the average day length in Karatsu, Japan, is 13h and 22min.

On the first day of August in Karatsu, sunrise is at 05:32 and sunset at 19:20. On the last day of the month, sunrise is at 05:53 and sunset at 18:47 JST.

The month with the most sunshine in Karatsu is August, with an average of 10.1h of sunshine.

In August, the average sunshine duration is 10.1h.

The average daily maximum UV index in August in Karatsu, Japan, is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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 August
Karatsu, Japan

  • Average high temperature in August: 29.3°C

The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in August: 24.6°C

The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).

Average pressure in August
Karatsu, Japan

  • Average pressure in August: 1008.4mbar

The month with the highest atmospheric pressure is January (1022.2mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in August
Karatsu, Japan

  • Average wind speed in August: 11.6km/h

The windiest month (with the highest average wind speed) is January (16.4km/h).
The calmest month (with the lowest average wind speed) is June (10.7km/h).

Average humidity in August
Karatsu, Japan

  • Average humidity in August: 81%

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January, February and March (71%).

Average rainfall in August
Karatsu, Japan

  • Average rainfall in August: 60mm

The wettest month (with the highest rainfall) is July (105mm).
The driest month (with the least rainfall) is January (18mm).

Average rainfall days in August
Karatsu, Japan

  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is May (9.4 days).

Average snowfall in August
Karatsu, Japan

  • Average snowfall in August: 0mm

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

Average snowfall days in August
Karatsu, Japan

  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (2.5 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
Karatsu, Japan

  • Average daylight in August: 13h and 24min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 10h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).

Average sunshine days in August
Karatsu, Japan

  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is May (19.4 days).
The month with the least sunshine days is July (7.9 days).

Average UV index in August
Karatsu, 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
Karatsu, Japan

  • Average cloud cover in August: 36

The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in August
Karatsu, Japan

  • Average visibility in August: 10km

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