September weather forecastEmsworth, United Kingdom
September weather for Emsworth, United Kingdom: The first month of the autumn, September, is still a comfortable month in Emsworth, United Kingdom, with an average temperature ranging between min 12.2°C (54°F) and max 18°C (64.4°F). September is the month with the warmest seawater in Emsworth, United Kingdom, with an average sea temperature of 17.3°C (63.1°F).
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Emsworth, United Kingdom, with an average temperature ranging between min 12.2°C (54°F) and max 18°C (64.4°F).Temperature
Emsworth commences September with an average high-temperature of a still refreshing 18°C (64.4°F), maintaining a close resemblance to the previous month. Emsworth in September experiences a low-temperature average of 12.2°C (54°F).Humidity
In Emsworth, the average relative humidity in September is 80%.Rainfall
In Emsworth, United Kingdom, during September, the rain falls for 11.5 days and regularly aggregates up to 25mm (0.98") of precipitation. Throughout the year, there are 175.3 rainfall days, and 435mm (17.13") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Sea temperature
The month with the warmest seawater in Emsworth is September, with an average sea temperature of 17.3°C (63.1°F).Note: The enjoyment of swimming decreases for most when the surface water temperature is 17.3°C (63.1°F). Breathing control becomes increasingly challenging as temperatures descend below 21°C (69.8°F).
Daylight
In Emsworth, the average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 6:18 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:43 pm BST.
Sunshine
In Emsworth, the average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Emsworth, United Kingdom
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (3.9°C).
Average pressure in September
Emsworth, United Kingdom
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in September
Emsworth, United Kingdom
- Average wind speed in September: 16.7km/h
The windiest month (with the highest average wind speed) is December (22.1km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Emsworth, United Kingdom
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Emsworth, United Kingdom
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (53mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Emsworth, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is November (18.4 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Emsworth, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Emsworth, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Emsworth, United Kingdom
- Average sea temperature in September: 17.3°C
The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in September /
Average sunshine in September
Emsworth, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Emsworth, United Kingdom
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is November (9.3 days).
Average UV index in September
Emsworth, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Emsworth, United Kingdom
- Average cloud cover in September: 43
The month with the most cloud cover is November (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 43).
Average visibility in September
Emsworth, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are March and June (10km).
The months with the lowest visibility are January, February, April, May, July, August, September, October, November and December (9km).
