Gibraltar weather in September
September in Gibraltar: warm, dry — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#4 of 12 months in Gibraltar · #369 of 1413 destinations to visit in September · comfort 87/100 (tier A)
- Days
- 26°C
- Nights
- 20°C
- Wet days
- 3
- Sun
- 11 h
- Humidity
- 74%
- Daylight
- 12 h

Traveller notes on Gibraltar in September
September here is barely cooler than August by the board's account - still hot, still a high sun index - and our row gives 26.1C reading as 27C over 20.1C nights with 17.4mm of rain across 2.9 days. The detail worth having is geographical: the sun does not clear the Rock until about half past ten, so the town sits in cool shade for the first hours of the day, which is when to walk it. The beaches are on the eastern side and the sea is 21.8C, warm enough that the changing rooms stay open to the end of the month. A 20.2 kph wind keeps 74 percent humidity from feeling heavy. The record: 11 hours of sun and AQI 56.
Other months in Gibraltar
Regulars name the Levanter directly as this month's defining weather quirk - an easterly wind off the warm Mediterranean that condenses into a visible cloud capping the Rock's east-facing side even as the town below stays dry and humid rather than genuinely wet. Our row backs a real, mixed-bag month, 23.1C over 17.7C nights, with 63.7mm of rain across 7.4 days that regulars describe as coming and going rather than settling in. Regulars call this a good time to visit overall - cooler, less busy, plenty of sunny days - with a jacket for the evenings the standard packing advice. The sea sits at 19.9C. The record: humidity 78 percent, 9.5 hours of sun, a 20.9 kph wind and AQI 54.
April here is genuinely two months in one deck of cards: regulars say it can be shorts and t-shirts or brisk and wet, with a good chance of either. Our row lands at 20.3C reading as 19C in a 23.8 kph wind, over 14.4C nights, with 54.4mm across 7.4 days. The thing this board explains to visitors over and over is the levanter - an easterly that pushes warm African air up the face of the Rock until it condenses into a cap of cloud. It is not rain, it sits on the summit rather than the town, and it either clears by early afternoon or hangs about for a day or two, so the cable car view is a matter of timing. The record: humidity 76 percent, 11.3 hours of sun, a 16.8C sea and AQI 61.
June in Gibraltar gets described as gorgeous and hot in the same breath - around 30C on one regular's account, against our row's 25.9C average high - and the question everyone asks is whether the Rock can be walked in it. The answers are practical: start the ascent as early as you can, both for the temperature and to have the path to yourself; the direct route up from the Elliott takes about 45 minutes if you are fit; and taking a taxi halfway is a sensible way to keep the climbing for the cooler part of the day. The sea is around 18 to 19C in June, cooler than later in the summer but swimmable. The record: 18.9C nights, 1.3 precipitation days, 13.1 hours of sun and a 21 kph wind.
Gibraltar forum threads describe January as mild by winter standards, typically 13-15C, though colder years can bring evenings down into single digits. Rain was flagged as a real feature of the month, and when it does fall it tends to arrive as genuine downpours rather than a light, steady drizzle - though experiences varied widely, with some January visits seeing barely any rain at all and mostly clear, mild days. The consistent advice across threads: pack a light jacket and an umbrella and stay flexible, since a given week here can swing between wet and genuinely sunny, and Gibraltar's winter stays noticeably milder overall than northern Europe regardless of which way a specific visit goes.
Add your own note from Gibraltar's card on the map.
Gibraltar climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Gibraltar in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsCruise calls, Summer border queues, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Gibraltar's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherGibraltar's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Gibraltar in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Cruise calls
1 Apr – 31 Oct · usuallyCruise seasonCrowdedAround two hundred and fifty ships a year berth on the western arm, and on a two-ship day Main Street and the cable car queue belong to them until the middle of the afternoon. The schedule is published months ahead. Source ↗
- Nature
Dolphins in the bay
1 Apr – 30 Sep · usuallyWhale seasonThree species work the bay year-round and the boats out of Marina Bay run several trips a day through the summer. Sailings thin out in winter and are called off outright on a hard Levanter. Source ↗
- Season
The Levanter cloud
1 May – 30 Sep · usuallyWind seasonRiskWhen the easterly blows, damp air piles against the Rock and a banner of cloud sits on the ridge for days. It ruins the view from the top and diverts flights to Malaga.
- Season
Summer border queues
1 Jul – 5 SepSchool holidaysCrowdedThe land frontier with Spain can take up to two hours to cross by car in high summer and on Spanish holiday weekends. Parking on the La Linea side and walking across is what residents do. Source ↗
- Nature
Raptor migration over the Strait
20 Aug – 31 Oct · usuallyWildlife seasonStorks, honey buzzards and eagles funnel over the Strait in autumn to make the shortest crossing to Africa, and on a good easterly morning they pass low over the Upper Rock in thousands.
- Holiday
Gibraltar National Day
10 SepNational holidayCrowdedClosuresOn 10 September the whole territory dresses in red and white, thirty thousand balloons go up over Casemates and almost nothing is open. The best day of the year to see the place as itself. Source ↗
Nearby, and something's on
Within 300 km of Gibraltar — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Gibraltar?
Gibraltar in September — FAQ
- Is September a good time to visit Gibraltar?
- September in Gibraltar: warm, dry — an excellent time to visit. It ranks #4 of 12 months for Gibraltar on SeasonMap's comfort score (87/100).
- What is the weather like in Gibraltar in September?
- In September, Gibraltar averages a daily high of 26.1°C and a low of 20.1°C, with about 17.4 mm of rain over roughly 2.9 rainy days.
- What is the air quality in Gibraltar in September?
- Gibraltar has a mean US Air Quality Index of about 56 in September.
Within 300 km: Tarifa's Whale and dolphin season around 1 Apr – 15 Oct, and Marbella's Beach clubs and chiringuitos open around 1 Apr – 15 Oct.