Your September weather guide
HotWeather in Marbella in September
September is a good choice for Marbella if you want warm days without relying on intense heat. Average highs are around 25°C and nights stay near 19°C, so light clothing should cover much of your stay. The catch is the sea: at about 21°C, it is bracing rather than comfortably warm. This month suits travellers who want time outdoors and relaxed evenings, can accept occasional rain, and do not need every swim to feel inviting.
Long-term climate averages for Marbella, not a forecast · 1991-2020
Marbella, month by month
Your snapshot
At a glance
The useful details for Marbella.
- Average daytime high
- 25.4°C
- 9 in 10 days stay below 28°C
- Average night-time low
- 19.1°C
- coldest 10% of nights: 17°C or lower
- Compared with London
- +6.8°C
- London averages 18.6°C in September
- Sea temperature
- 21.0°C
- year to year: 20°C to 22°C
- Sunshine per day (est.)
- 8.4h
- 69% of 12.2 h of daylight
- Rainy days (1 mm+)
- 4
- 31 mm over the month
- Humidity
- 71%
- Days over 25°C
- 58%
- 3% over 30°C
- Record high 1991-2020
- 33.4°C
- 2016-09-07
- Record low 1991-2020
- 12.9°C
- 1992-09-28
- Flight from London
- ≈ 2 h 48 min
- 1669 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How September compares
September is the 3rd warmest month of the year in Marbella and ranks 87th of 134 destinations we compare for September - see where else is hot in September. Within Spain it is 60th of 87 (Spain in September). Against London's average high of 18.6°C in September, Marbella is 6.8°C warmer by day and 7.9°C warmer at night.
Daytime and night-time in September
The typical September day in Marbella peaks at 25.4°C, but that is an average: the warmest 10% of days reach 28.2°C or more. About 58% of days top 25°C and 1 in 33 pass 30°C. Nights average 19.1°C; one night in ten drops to 16.8°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest September day here reached 33.4°C (2016-09-07) and the coldest night 12.9°C (1992-09-28).
Rain in September
Some rain (4-8 rainy days): about 4 days with 1 mm or more, 31 mm in total. Year to year it varies a lot - the wettest September was 2012 with 96 mm, the driest 2016 with 1 mm. Humidity averages 71%.
Sea temperature in September
The sea averages 21.0°C - bracing (18-22°c). Depending on the year it ranges from 19.8°C to 22.2°C. For the warmest sea here, come in August (22.4°C).
Sunshine and daylight
Around 8.4 hours of sunshine a day (estimated from cloud cover), 12.2 hours of daylight: the sun rises about 08:02 and sets about 20:28 local time in mid-September. Average cloud cover is 32%.
Is September a good time to visit Marbella?
Yes - it is one of the better months: hot days, manageable rain and long sunny days. The best months for Marbella on our scoring are July, August, June; months averaging 25°C or more: Jun, Jul, Aug, Sep.
Warm afternoons, with less chance of intense heat
Pack mainly for warm weather, but do not assume every afternoon will be hot. Around 58% of days reach 25°C, while only 3% reach 30°C, making September a reasonable choice if you dislike intense heat. Stronger warmth is still possible, so keep midday plans flexible and leave room for shade rather than scheduling all your walking then. Evenings should generally suit light clothing, though a light jumper is sensible for sitting outside. The coldest 10% of nights fall to 16.8°C or below, so packing only summer tops would be a gamble. It is a useful balance for travellers who want warmth without making heat the focus of the holiday.
Plenty of outdoor time, but a cooler sea
With about 8.4 hours of sunshine within 12.2 hours of daylight, September gives you plenty of scope for outdoor plans. Rain is a possibility rather than something to ignore: about 4 days have measurable rain, so bring a light waterproof and keep some plans flexible. That does not mean wet days will be evenly spaced through your stay. Swimming needs a separate judgement from the air temperature. The sea averages 21°C, with a year-to-year range of 20°C to 22°C, so expect a bracing entry rather than warm water. If you are comfortable with cooler swimming, that may be fine; if warm sea water is essential, September is a less convincing choice.
A little perspective
Marbella through the year
September is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 14.7°C | 9.1°C | 15.3°C | 5.3 | 83 | 9 | 0% |
| February | 15.2°C | 9.4°C | 14.8°C | 6.0 | 72 | 8 | 0% |
| March | 16.9°C | 10.8°C | 15.2°C | 6.4 | 78 | 8 | 0% |
| April | 18.6°C | 12.3°C | 15.8°C | 7.4 | 55 | 7 | 0% |
| May | 21.5°C | 14.9°C | 17.1°C | 8.8 | 32 | 5 | 9% |
| Junebest | 25.3°C | 18.3°C | 18.9°C | 11.6 | 8 | 1 | 53% |
| Julybest | 28.2°C | 21.0°C | 21.1°C | 13.0 | 1 | 0 | 94% |
| Augustbest | 28.5°C | 21.6°C | 22.4°C | 11.3 | 4 | 1 | 97% |
| SeptemberSelected | 25.4°C | 19.1°C | 21.0°C | 8.4 | 31 | 4 | 58% |
| October | 21.7°C | 16.1°C | 19.2°C | 6.1 | 81 | 8 | 9% |
| November | 17.7°C | 12.4°C | 17.2°C | 5.4 | 94 | 8 | 0% |
| December | 15.4°C | 10.4°C | 15.9°C | 4.6 | 115 | 9 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in September
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Marbella in September FAQs
Plain answers, grounded in the averages.
Is Marbella hot in September?
Marbella is hot in September: the average daytime high is 25.4°C and nights average 19.1°C. About 58% of September days reach 25°C or more.
Can you swim in the sea in Marbella in September?
The sea around Marbella averages 21.0°C in September, which is bracing - fine for a quick dip, cool for long swims. Between 1991 and 2020 it ranged from 20°C to 22°C depending on the year.
How much does it rain in Marbella in September?
Marbella sees about 4 rainy days (1 mm or more) and 31 mm of rain in a typical September. The wettest September between 1991 and 2020 was 2012 (96 mm) and the driest was 2016 (1 mm).
How sunny is Marbella in September?
Marbella gets around 8.4 hours of sunshine a day in September out of 12.2 hours of daylight (estimated from average cloud cover).
How does Marbella compare with the UK in September?
Marbella is on average 6.8°C warmer than London by day in September (25.4°C against 18.6°C).
What is the hottest September on record in Marbella?
Between 1991 and 2020 the hottest September day in Marbella reached 33.4°C on 2016-09-07, and the coldest night dropped to 12.9°C on 1992-09-28.
How much warmer is Marbella than London in September?
Marbella's average daytime high is 25.4°C, compared with 18.6°C in London, a difference of 6.8°C. That is a meaningful step up in daytime warmth, making light summer clothing a more useful starting point for packing.
Is September the best month for a weather-focused trip?
July, August and June rate better overall for weather. September still suits a warm-weather break, but occasional rain and a bracing sea are the compromises. Choose it if warm air matters more to you than reliably warm swimming.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Marbella. Sea temperature from the nearest 5 km sea cell, 4.6 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C