September weather forecastLongyan, China
September
Weather in September
September in Longyan, China signifies the onset of autumn, marked by a slight decrease in average temperatures after the peak summer months. Rainfall continues to lessen, from 176mm (6.93") in August to 139mm (5.47"). This dry period coupled with the decrease in humidity indicates a shift from the wet summer months to a drier autumn climate. The daylight hours start to decrease, signaling shorter days ahead. The wind speed sees an increment, offering a cool breeze that caters to a pleasant climate, inviting hikers and sightseers to explore the city.Temperature
September's advent in Longyan presents an average high-temperature of a still warm 27.8°C (82°F), indicating a slight variation from the conditions of the previous month. Nighttime temperatures consistently average an enjoyable 18.9°C (66°F) during September.Heat index
During September, the heat index is evaluated at a tropical 32°C (89.6°F). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The average relative humidity in September is 86%.Rainfall
In September, the rain falls for 23.9 days. Throughout September, 139mm (5.47") of precipitation is accumulated. In Longyan, China, during the entire year, the rain falls for 238.5 days and collects up to 1410mm (55.51") of precipitation.Snowfall
In Longyan, snow does not fall in February through November.Daylight
In Longyan, the average length of the day in September is 12h and 18min.On the first day of the month, sunrise is at 05:52 and sunset at 18:30. On the last day of September, in Longyan, sunrise is at 06:03 and sunset at 18:00 CST.
Sunshine
In Longyan, the average sunshine in September is 7.4h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Longyan, China
- Average high temperature in September: 27.8°C
The warmest months (with the highest average high temperature) are July and August (29.5°C).
The month with the lowest average high temperature is January (15.7°C).
- Average low temperature in September: 18.9°C
The month with the highest average low temperature is July (20.5°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).
Average pressure in September
Longyan, China
- Average pressure in September: 1010.1mbar
The month with the highest atmospheric pressure is January (1022.7mbar).
The month with the lowest atmospheric pressure is August (1005.8mbar).
Average wind speed in September
Longyan, China
- Average wind speed in September: 5km/h
The windiest month (with the highest average wind speed) is June (6.1km/h).
The calmest month (with the lowest average wind speed) is August (4.9km/h).
Average humidity in September
Longyan, China
- Average humidity in September: 86%
The month with the highest relative humidity is June (89%).
The month with the lowest relative humidity is December (78%).
Average rainfall in September
Longyan, China
- Average rainfall in September: 139mm
The wettest month (with the highest rainfall) is June (223mm).
The driest month (with the least rainfall) is December (33mm).
Average rainfall days in September
Longyan, China
- Average rainfall days in September: 23.9 days
The month with the highest number of rainy days is August (27.1 days).
The month with the least rainy days is December (10.5 days).
Average snowfall days in September
Longyan, China
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Longyan, China
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is August (Average sunshine: 8h and 24min).
The month with the least sunshine is March (Average sunshine: 5h and 0min).
Average sunshine days in September
Longyan, China
- Average sunshine days in September: 4.5 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (2.6 days).
Average UV index in September
Longyan, China
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Longyan, China
- Average cloud cover in September: 60
The months with the most cloud cover are May and June (Cloud cover 71).
The month with the least cloud cover is December (Cloud cover 43).
Average visibility in September
Longyan, China
- Average visibility in September: 6km
The months with the highest visibility are January, February, March, October and December (8km).
The months with the lowest visibility are May, June, July, August and September (6km).
