September weather forecastSaiki, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Saiki, Japan, with an average temperature ranging between min 21.8°C (71.2°F) and max 25.9°C (78.6°F).Temperature
September's arrival subtly correlates with a reduction in the average high-temperature, down from a moderately hot 29.3°C (84.7°F) in August to a still warm 25.9°C (78.6°F). During the September nights, Saiki's temperature maintains an average close to the daytime highs, settling at an agreeable 21.8°C (71.2°F).Humidity
The average relative humidity in September is 80%.Rainfall
In Saiki, in September, it is raining for 16.5 days, with typically 136mm (5.35") of accumulated precipitation. Throughout the year, there are 168.7 rainfall days, and 1189mm (46.81") of precipitation is accumulated.Snowfall
In Saiki, snow does not fall in March through November.Sea temperature
In Saiki, in September, the average water temperature is 27.1°C (80.8°F).Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as ideal and highly pleasant for extended enjoyment in all water activities.
Daylight
In September, the average length of the day is 12h and 23min.On the first day of September in Saiki, sunrise is at 05:47 and sunset at 18:37. On the last day of the month, sunrise is at 06:05 and sunset at 17:58 JST.
Sunshine
In Saiki, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Saiki is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 6 during September translates into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saiki, Japan
- Average high temperature in September: 25.9°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 (9.8°C).
- Average low temperature in September: 21.8°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 (5.1°C).
Average pressure in September
Saiki, Japan
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is January (1021.3mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in September
Saiki, Japan
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is January (16.8km/h).
The calmest month (with the lowest average wind speed) is June (9.8km/h).
Average humidity in September
Saiki, Japan
- Average humidity in September: 80%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January and March (71%).
Average rainfall in September
Saiki, Japan
- Average rainfall in September: 136mm
The wettest month (with the highest rainfall) is June (190mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Saiki, Japan
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is July (23 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Saiki, Japan
- Average snowfall in September: 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 September
Saiki, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Saiki, Japan
- Average sea temperature in September: 27.1°C
The best month for swimming (with the highest average sea temperature) is August (28°C).
The coldest month (with the lowest average sea temperature) is February (17.3°C).
Average daylight in September /
Average sunshine in September
Saiki, Japan
- Average daylight in September: 12h 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 September: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Saiki, Japan
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Saiki, Japan
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Saiki, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is June (Cloud cover 48).
The months with the least cloud cover are January, August, November and December (Cloud cover 33).
Average visibility in September
Saiki, Japan
- Average visibility in September: 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).
