September weather forecastMiyazaki, Japan

September

Weather in September

September promises a respite from the intense heat of August. Marking the onset of Autumn, the warm days start to cool, yet the climate remains far from chilly. The noticeable descent in the thermometer's readings predicts the slow approach of chillier times. A dip in rainfall allows the beautiful autumn sun to shine through. Despite a decrease in sea temperature, the water remains warm enough for swimming enthusiasts and water sports aficionados.

Temperature

Miyazaki's weather subtly changes with the onset of September, barely falling from a tropical 32°C (89.6°F) in August to a warm 29°C (84.2°F). Throughout September, an average low-temperature of 21°C (69.8°F) is experienced.

Rainfall

In Miyazaki, during September, the rain falls for 19 days and regularly aggregates up to 313mm (12.32") of precipitation. Throughout the year, in Miyazaki, there are 197 rainfall days, and 2533mm (99.72") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature in Miyazaki is 27.6°C (81.7°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 05:49 and sunset at 18:38. On the last day of September, sunrise is at 06:07 and sunset at 18:00 JST.

Sunshine

The months with the least sunshine in Miyazaki are March through June, September and November, with an average of 5h of sunshine.

UV index

In Miyazaki, the average daily maximum UV index in September is 9. A UV Index reading of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 9 in September interprets into the following recommendations:
Take all necessary measures. Eyes and skin are at risk if left unprotected. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Directly after outdoor activities or swimming, a broad-spectrum sunscreen with SPF 30+ should be applied generously and reapplied frequently. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.

Frequently asked questions

The average high-temperature, in September, in Miyazaki, is 29°C (84.2°F), while the average low-temperature is 21°C (69.8°F).

In Miyazaki, Japan, in September, it is raining for 19 days, with typically 313mm (12.32") of accumulated precipitation.

In Miyazaki, Japan, the average seawater temperature in September is 27.6°C (81.7°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.

The average day length in September in Miyazaki, Japan, is 12h and 22min.

On the first day of September in Miyazaki, Japan, sunrise is at 05:49 and sunset at 18:38. On the last day of the month, sunrise is at 06:07 and sunset at 18:00 JST.

March through June, September and November, with an average of 5h of sunshine, are months with the least sunshine.

The average sunshine duration in September is 5h.

In Miyazaki, Japan, the average daily maximum UV index in September is 9. A UV Index reading of 8 to 10 represents a very high health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average sunshine
Average UV index

Average temperature in September
Miyazaki, Japan

  • Average high temperature in September: 29°C

The warmest month (with the highest average high temperature) is August (32°C).
The months with the lowest average high temperature are January and February (13°C).

  • Average low temperature in September: 21°C

The months with the highest average low temperature are July and August (24°C).
The coldest month (with the lowest average low temperature) is January (2°C).

Average rainfall in September
Miyazaki, Japan

  • Average rainfall in September: 313mm

The wettest month (with the highest rainfall) is June (423mm).
The driest month (with the least rainfall) is December (53mm).

Average rainfall days in September
Miyazaki, Japan

  • Average rainfall days in September: 19 days

The month with the highest number of rainy days is June (21 days).
The month with the least rainy days is December (11 days).

Average sea temperature in September
Miyazaki, Japan

  • Average sea temperature in September: 27.6°C

The best month for swimming (with the highest average sea temperature) is August (28.4°C).
The coldest month (with the lowest average sea temperature) is February (18.7°C).

Average daylight in September /
Average sunshine in September
Miyazaki, Japan

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 5h

The months with the most sunshine are July and August (Average sunshine: 7h).
The months with the least sunshine are March, April, May, June, September and November (Average sunshine: 5h).

Average UV index in September
Miyazaki, Japan

  • Average UV index in September: 9

The months with the highest UV index are June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 3).