September weather forecastMillbrook, Jersey
September
Weather in September
A shift in the weather is noticed as September steps in, marking the commencement of autumn in Millbrook. A decrease in temperature, rainfall, and humidity paves the way for the onset of milder weather. The sun starts setting earlier, reducing the amount of daylight hours suggesting the transition from summer. The changing landscape, painted with hues of fall, accompanied by the temperature lows of 15.3°C (59.5°F), match perfectly with cozy layers and hot drinks. Despite the slower pace of life, the vibrant autumn foliage makes September a great time to stroll around town.Temperature
Millbrook greets September with an average high-temperature of a still comfortable 17.5°C (63.5°F), marking a slight deviation from the preceding month. In September, a low-temperature average of 15.3°C (59.5°F) is characteristic of Millbrook, marking a minor shift from daytime temperatures.Humidity
In September, the average relative humidity in Millbrook is 79%.Rainfall
In September, the rain falls for 13.3 days. Throughout September, 31mm (1.22") of precipitation is accumulated. In Millbrook, during the entire year, the rain falls for 189 days and collects up to 538mm (21.18") of precipitation.Snowfall
In Millbrook, snow does not fall in April through October.Daylight
In September, the average length of the day in Millbrook is 12h and 35min.On the first day of the month, sunrise is at 06:25 and sunset at 19:51. On the last day of September, sunrise is at 07:07 and sunset at 18:49 BST.
Sunshine
The average sunshine in September in Millbrook is 8.6h.UV index
June through September, with an average maximum UV index of 5, are months with the highest UV index in Millbrook. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Millbrook, Jersey
- Average high temperature in September: 17.5°C
The warmest month (with the highest average high temperature) is August (18.2°C).
The month with the lowest average high temperature is February (9°C).
- Average low temperature in September: 15.3°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).
Average pressure in September
Millbrook, Jersey
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed in September
Millbrook, Jersey
- Average wind speed in September: 23.5km/h
The windiest month (with the highest average wind speed) is December (34km/h).
The calmest month (with the lowest average wind speed) is July (20.4km/h).
Average humidity in September
Millbrook, Jersey
- Average humidity in September: 79%
The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are November and December (78%).
Average rainfall in September
Millbrook, Jersey
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is July (25mm).
Average rainfall days in September
Millbrook, Jersey
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is November (21.2 days).
The months with the least rainy days are May and July (12.2 days).
Average snowfall in September
Millbrook, Jersey
- Average snowfall in September: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Millbrook, Jersey
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Millbrook, Jersey
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and November (Average sunshine: 4h and 0min).
Average sunshine days in September
Millbrook, Jersey
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is November (5.8 days).
Average UV index in September
Millbrook, Jersey
- Average UV index in September: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Millbrook, Jersey
- Average cloud cover in September: 39
The months with the most cloud cover are January, November and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Millbrook, Jersey
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





