Gibraltar
Gibraltar
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Gibraltar, Gibraltar

A scenic shot of the Gibraltar Rock in Gibraltar
A scenic shot of the Gibraltar Rock in Gibraltar
The first month of the autumn, September, is still a warm month in Gibraltar, Gibraltar, with temperature in the range of an average high of 26°C (78.8°F) and an average low of 19°C (66.2°F).

Temperature

In September, the average high-temperature slightly decreases, from 29°C (84.2°F) in August, to a still moderately hot 26°C (78.8°F). The average low-temperature, in Gibraltar, is 19°C (66.2°F).

Rainfall

In September, the rain falls for 2 days. Throughout September, 23mm (0.9") of precipitation is accumulated. Throughout the year, in Gibraltar, there are 63.5 rainfall days, and 767mm (30.2") of precipitation is accumulated.

Sea temperature

In Gibraltar, in September, the average water temperature is 21.8°C (71.2°F). Swimming in 21.8°C (71.2°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In Gibraltar, the average length of the day is 12.4h.

Sunshine

The average sunshine is 9h.

UV index

In September, the average daily maximum UV index in Gibraltar, Gibraltar, is 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for ordinary individuals.
The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Gibraltar?

In Gibraltar, in September, the average high-temperature is 26°C (78.8°F), and the average low-temperature is 19°C (66.2°F).

How much does it rain in Gibraltar in September?

In Gibraltar, Gibraltar, in September, during 2 rainfall days, 23mm (0.9") of precipitation is typically accumulated.

What is the sea water temperature in September in Gibraltar?

In Gibraltar, the average seawater temperature in September is 21.8°C (71.2°F). For most, swimming in 21.8°C (71.2°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Gibraltar have in September?

The average length of the day in September in Gibraltar, Gibraltar, is 12.4h.

How long on average sun shines in September in Gibraltar?

In Gibraltar, Gibraltar, the average sunshine in September is 9h.

What is the UV index reading in September in Gibraltar?

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.
Average temperature in September - Gibraltar, Gibraltar
  • Average high temperature in September: 26°C

The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (16°C).

  • Average low temperature in September: 19°C

The month with the highest average low temperature is August (21°C).
The coldest month (with the lowest average low temperature) is January (10°C).

Average rainfall in September - Gibraltar, Gibraltar
  • Average rainfall in September: 23mm

The wettest month (with the highest rainfall) is January (152mm).
The driest month (with the lowest rainfall) is July (1mm).

Average rainfall days in September - Gibraltar, Gibraltar
  • Average rainfall days in September: 2 days

Months with the highest number of rainy days are January, March and December (10 days).
The month with the lowest number of rainy days is July (0.5 days).

Average sea temperature in September - Gibraltar, Gibraltar
  • Average sea temperature in September: 21.8°C

The best month for swimming (with the highest average sea temperature) is August (23.3°C).
Coldest months (with the lowest average sea temperature) are February and March (15.8°C).

Average daylight in September / Average sunshine in September - Gibraltar, Gibraltar
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9h

Months with most sunshine are June, July and August (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 6).

Average UV index in September - Gibraltar, Gibraltar
  • Average UV index in September: 7

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).