Emsworth
United Kingdom
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Emsworth, United Kingdom

September, the first month of the autumn, in Emsworth, is also an enjoyable month, with average temperature ranging between max 18°C (64.4°F) and min 12.2°C (54°F).

Temperature

In Emsworth, the average high-temperature in September is almost the same as in August - a still comfortable 18°C (64.4°F). The average low-temperature, in September, is 12.2°C (54°F).

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Emsworth, during September, the rain falls for 11.5 days and regularly aggregates up to 25mm (0.98") of precipitation. In Emsworth, during the entire year, the rain falls for 175.3 days and collects up to 435mm (17.13") of precipitation.

Snowfall

April through October are months without snowfall.

Sea temperature

September is the month with the warmest seawater, with an average sea temperature of 17.3°C (63.1°F).
Note: For swimming, a surface water temperature of 17.3°C (63.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In September, the average length of the day in Emsworth is 12.6h.

Sunshine

The average sunshine in Emsworth is 7.9h.

UV index

The average daily maximum UV index in Emsworth is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Emsworth?

The average high-temperature, in September, is 18°C (64.4°F), while the average low-temperature is 12.2°C (54°F).

What is the average humidity in September in Emsworth?

In September, the average relative humidity in Emsworth, United Kingdom, is 80%.

How many days does it rain in September in Emsworth?

In September, in Emsworth, United Kingdom, the rain falls for 11.5 days. Throughout September, 25mm (0.98") of precipitation is accumulated.

When it does not snow in Emsworth?

April through October are months without snowfall.

When is the sea warmest in Emsworth?

With an average sea temperature of 17.3°C (63.1°F), September is the month with the warmest seawater in Emsworth, United Kingdom.

What is the sea water temperature in September in Emsworth?

In Emsworth, in September, the average water temperature is 17.3°C (63.1°F). For swimming, a surface water temperature of 17.3°C (63.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

What is the average length of the day in September in Emsworth?

In September, the average length of the day in Emsworth, United Kingdom, is 12.6h.

How long on average sun shines in September in Emsworth?

In September, the average sunshine in Emsworth, United Kingdom, is 7.9h.

What is the UV index intensity in September in Emsworth?

In Emsworth, United Kingdom, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.
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).
Coldest months (with the lowest average low temperature) are January and February (3.9°C).

Average humidity in September - Emsworth, United Kingdom
  • Average humidity in September: 80%

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 lowest 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 lowest number of 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).
Months with the lowest 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).
Months with the lowest number of 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: 12.6h

The month with the longest days is June (Average daylight: 16.4h).
The month with shortest days is December (Average daylight: 8h).

  • Average sunshine in September: 7.9h

The month with most sunshine is July (Average sunshine: 8.9h).
The month with least sunshine is February (Average sunshine: 3.9h).

Average UV index in September - Emsworth, United Kingdom
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 2).