August weather forecastShimabara, Japan
August
Weather in August
The last month of the summer, August, is a hot month in Shimabara, Japan, with temperature in the range of an average high of 30.3°C (86.5°F) and an average low of 24.8°C (76.6°F).Temperature
Shimabara's August weather reaches an average high of 30.3°C (86.5°F) and an average low of 24.8°C (76.6°F), making it the warmest month.Heat index
For August, the heat index is computed to be a very hot 38°C (100.4°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In Shimabara, the average relative humidity in August is 78%.Rainfall
In Shimabara, Japan, in August, during 17.9 rainfall days, 96mm (3.78") of precipitation is typically accumulated. In Shimabara, during the entire year, the rain falls for 163.3 days and collects up to 865mm (34.06") of precipitation.Snowfall
March through November are months without snowfall in Shimabara.Sea temperature
August is the month with the warmest seawater, with an average sea temperature of 27.8°C (82°F).Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.
Daylight
In Shimabara, Japan, the average length of the day in August is 13h and 20min.On the first day of the month, sunrise is at 05:32 and sunset at 19:17. On the last day of August, sunrise is at 05:52 and sunset at 18:44 JST.
Sunshine
With an average of 10.8h of sunshine, August has the most sunshine of the year in Shimabara.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 7 during August translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Shimabara, Japan
- Average high temperature in August: 30.3°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (9.6°C).
- Average low temperature in August: 24.8°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 (4.6°C).
Average pressure in August
Shimabara, Japan
- Average pressure in August: 1008.5mbar
The month with the highest atmospheric pressure is January (1021.9mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).
Average wind speed in August
Shimabara, Japan
- Average wind speed in August: 9.5km/h
The windiest months (with the highest average wind speed) are February, March and December (12.5km/h).
The calmest month (with the lowest average wind speed) is June (8.9km/h).
Average humidity in August
Shimabara, Japan
- Average humidity in August: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is March (70%).
Average rainfall in August
Shimabara, Japan
- Average rainfall in August: 96mm
The wettest month (with the highest rainfall) is July (183mm).
The driest month (with the least rainfall) is January (28mm).
Average rainfall days in August
Shimabara, Japan
- Average rainfall days in August: 17.9 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is October (9.8 days).
Average snowfall in August
Shimabara, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in August
Shimabara, Japan
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in August
Shimabara, Japan
- Average sea temperature in August: 27.8°C
The best month for swimming (with the highest average sea temperature) is August (27.8°C).
The coldest month (with the lowest average sea temperature) is March (15.5°C).
Average daylight in August /
Average sunshine in August
Shimabara, Japan
- Average daylight in August: 13h and 18min
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 48min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in August
Shimabara, Japan
- Average sunshine days in August: 10.9 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in August
Shimabara, Japan
- Average UV index in August: 7
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Shimabara, Japan
- Average cloud cover in August: 30
The month with the most cloud cover is June (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 30).
Average visibility in August
Shimabara, 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).
