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
September in Ansan, South Korea, signifies a minor drop in average high-temperature, transitioning from 29.2°C (84.6°F) in August to a still moderately hot 24.8°C (76.6°F). Throughout the month of September, Ansan sees a steady low-temperature average of 17.5°C (63.5°F).Humidity
The average relative humidity in September is 71%.Rainfall
In September, in Ansan, the rain falls for 10.5 days. Throughout September, 79mm (3.11") of precipitation is accumulated. Throughout the year, there are 115.1 rainfall days, and 748mm (29.45") of precipitation is accumulated.Snowfall
In Ansan, snow does not fall in May through October.Sea temperature
In September, the average sea temperature is 21.9°C (71.4°F).Note: Swimming becomes less enjoyable for most at a surface water temperature of 21.9°C (71.4°F). As the temperature decreases below 21°C (69.8°F), breathing becomes increasingly difficult.
Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 06:03 and sunset at 19:01. On the last day of September, sunrise is at 06:27 and sunset at 18:17 KST.
Sunshine
In Ansan, the average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. It's recommended to limit sun exposure when its radiation is at its peak during midday. Boost your sun resistance with garments that are densely woven yet spacious. Alert! Sand and water increase UV exposure due to their reflective properties.
Frequently asked questions
What are September temperatures in Ansan?
What is the average humidity in September in Ansan?
How much does it rain in Ansan in September?
When it does not snow in Ansan?
How cold is the water in September in Ansan?
What is the average length of the day in September in Ansan?
When are sunrise and sunset in September in Ansan?
How many hours of sunshine does Ansan have in September?
How high is the UV index in September in Ansan?
Average temperature in September
Ansan, South Korea
- Average high temperature in September: 24.8°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in September: 17.5°C
The month with the highest average low temperature is August (22.3°C).
The coldest month (with the lowest average low temperature) is January (-5°C).
Average pressure in September
Ansan, South Korea
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is January (1025.3mbar).
The month with the lowest atmospheric pressure is July (1007mbar).
Average wind speed in September
Ansan, South Korea
- Average wind speed in September: 8km/h
The windiest month (with the highest average wind speed) is March (11.6km/h).
The calmest months (with the lowest average wind speed) are June and September (8km/h).
Average humidity in September
Ansan, South Korea
- Average humidity in September: 71%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are February and March (58%).
Average rainfall in September
Ansan, South Korea
- Average rainfall in September: 79mm
The wettest month (with the highest rainfall) is July (182mm).
The driest month (with the least rainfall) is January (13mm).
Average rainfall days in September
Ansan, South Korea
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Ansan, South Korea
- Average snowfall in September: 0mm
The month with the highest snowfall is February (46mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ansan, South Korea
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Ansan, South Korea
- Average sea temperature in September: 21.9°C
The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (3.3°C).
Average daylight in September /
Average sunshine in September
Ansan, South Korea
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are November and December (Average sunshine: 5h and 48min).
Average sunshine days in September
Ansan, South Korea
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is August (8.5 days).
Average UV index in September
Ansan, South Korea
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Ansan, South Korea
- Average cloud cover in September: 31
The month with the most cloud cover is July (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Ansan, South Korea
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, October, November and December (10km).
The month with the lowest visibility is July (8km).
Ansan, South Korea
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