Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a still moderately hot 23.5°C (74.3°F) from August's 26.8°C (80.2°F). Ishinomaki experiences an average nighttime temperature of 19.3°C (66.7°F) in September, reflecting a minor difference from the day's peak.Humidity
The average relative humidity in September is 79%.Rainfall
In Ishinomaki, in September, during 15.1 rainfall days, 85mm (3.35") of precipitation is typically accumulated. Throughout the year, in Ishinomaki, there are 151.7 rainfall days, and 846mm (33.31") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Sea temperature
In September, the average sea temperature in Ishinomaki, Japan, is 22.3°C (72.1°F).Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22.3°C (72.1°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)
Daylight
In September, the average length of the day in Ishinomaki is 12h and 27min.On the first day of September, sunrise is at 05:04 and sunset at 18:05. On the last day of the month, sunrise is at 05:29 and sunset at 17:19 JST.
Sunshine
In Ishinomaki, the average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index in Ishinomaki is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, an average UV index of 5 transforms into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Frequently asked questions
What is the usual temperature for Ishinomaki in September?
What is the average humidity in September in Ishinomaki?
How much does it rain in Ishinomaki in September?
When it does not snow in Ishinomaki?
What is the water temperature in September in Ishinomaki?
How many hours of daylight does Ishinomaki have in September?
When is the sunrise / sunset in September in Ishinomaki?
How long on average sun shines in September in Ishinomaki?
What is the UV index reading in September in Ishinomaki?
Average temperature in September
Ishinomaki, Japan
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 19.3°C
The month with the highest average low temperature is August (22°C).
The coldest month (with the lowest average low temperature) is February (0.3°C).
Average pressure in September
Ishinomaki, Japan
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The months with the lowest atmospheric pressure are June and July (1009.4mbar).
Average wind speed in September
Ishinomaki, Japan
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is January (21.3km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).
Average humidity in September
Ishinomaki, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Ishinomaki, Japan
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is October (122mm).
The driest month (with the least rainfall) is February (29mm).
Average rainfall days in September
Ishinomaki, Japan
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are January and February (6.6 days).
Average snowfall in September
Ishinomaki, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (57mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Ishinomaki, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Ishinomaki, Japan
- Average sea temperature in September: 22.3°C
The best month for swimming (with the highest average sea temperature) is August (23.6°C).
The coldest month (with the lowest average sea temperature) is March (6.9°C).
Average daylight in September /
Average sunshine in September
Ishinomaki, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is May (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Ishinomaki, Japan
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is January (19.1 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
Ishinomaki, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Ishinomaki, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is July (Cloud cover 50).
The months with the least cloud cover are May and November (Cloud cover 38).
Average visibility in September
Ishinomaki, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
Ishinomaki, Japan
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