Weather in Gibraltar in September 2025
Average weather
Average temperature in Gibraltar in September
Going from a maximum of +81°F during the day to a minimum of +63°F during the night, the temperature in September averages around +75°F.
The average maximum temperature goes down 30% by the end of the month, compared with the beginning of the month, from +79°F to +73°F.
Is Gibraltar warm or cold in September?
Gibraltar is typically warm in September.
Maximum temperatures go down compared to the previous month from +81°F to +77°F. The minimum temperature also goes down from +70°F to +68°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Gibraltar, here is the comparison with other months:
Water temperature in Gibraltar in September
Water in Gibraltar in September is Comfortable. It varies from +68°F to +75°F, with an average of +72°F. This is almost similar to the air temperature, which averages +77°F.
The water temperature in September is one of the warmest of the entire year:
Can you swim in Gibraltar in September?
Climate in Gibraltar in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +81°F | +77°F | +70°F | ||||
| Min. temperature | ||||||
| +63°F | +55°F | +52°F | ||||
| Max. temperature | ||||||
| +99°F | +93°F | +91°F | ||||
| Rainfall | ||||||
| 5 mm | 22 mm | 63 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Avg. water temperature | ||||||
| +74°F | +72°F | +70°F | ||||
| Humidity | ||||||
| 73% | 76% | 78% | ||||
| Air pressure | ||||||
| 1014 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 19 | 11 | 7 | ||||
| Cloudy days | ||||||
| 10 | 13 | 13 | ||||
| Rainy days | ||||||
| 2 | 5 | 9 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September typically has worse weather conditions compared to August. It’s getting colder in September. From +81°F in the day, the average maximum temperature lowers to +77°F. Prepare for more rain. Average rainfall goes from 5 mm to 22 mm. Humidity rises from 73% to 76%. The average wind speed doesn’t change much during September, staying around 4 m/s. The days becoming less sunny, going from 19 sunny days in August to 11 in September.
Next month (October) brings a further decline in the weather.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Gibraltar is gradually increasing during September, going from 3 m/s to 7 m/s over the course of the month.
Rain
How was the weather last September in Gibraltar?
Climate Change Over the Years
The climate in Gibraltar in September has not changed that much over the last 43 years.
The average temperature was the lowest in 2005 (+67°F) and the highest in 2020 (+71°F). The driest year was 2019 with only 310 mm of rainfall, and the wettest year was 2010 with 1338 mm.
FAQ
Is September a good time to visit Gibraltar?
Can you sunbathe in Gibraltar in September?
Can you swim in Gibraltar in September?
Is Gibraltar rainy in September?
Is it sunny in Gibraltar in September?
Monthly weather in Gibraltar
Source of the data
For this page, we’ve looked at the typical weather in Gibraltar, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.