Weather in Palma in September
Spain · 20-year averages, September
Prime time. September is about as good as Palma gets. Highs average 25.5 °C, lows 22.8 °C, and rain falls on 10 days — nothing in the month is working against you.
September ranks 5 of 12 in Palma: past the worst of the year but short of June, which is the month to book if the dates are open.
Rain on 10 days, 2 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average September reaches 30 °C; the day barely swings — 2.8 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest September day reached 31.2 °C and the coldest night fell to 18 °C, and the wettest single day dropped 35 mm — roughly 56% of the month's rain in one day.
September is moderately variable: 18 mm in the driest year against 157 mm in the wettest, around an average of 63 mm. Roughly two Septembers in three land near that average, and the third does something else entirely.
Wind is light at 12.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 71%.
How September sits in the year
The month is on the way down: 2.8 °C cooler than August, with October dropping another 3 °C. The first week and the last are not the same trip. Rain has already shifted: 6 days more than August had.
Daylight in September
12.5 hours of daylight, losing 1.3 hours across the month. That is between Palma's extremes of 14.9 and 9.4 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 24.8 °C in September — warm enough to stay in as long as you like. This is the warmest the water gets all year.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself. September is the value pick for Palma: it scores within 14 points of June without carrying June's prices.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
September in Palma versus nearby
If Palma is one option among several, the nearby comparison is worth making. Barcelona is close enough to be a coin toss — 2.4 °C warmer, 1 day less rain. Valencia is the weaker option in September — 5 °C warmer, 2 days less rain.
So: September works, with June the better month by 14 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Palma
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 13.9 | 11.7 | 9 | 47 | 77 | 9.7 | 14.2 | 65 |
| February | 13.5 | 11.1 | 7 | 40 | 77 | 10.7 | 13.5 | 67 |
| March | 15 | 12.2 | 7 | 36 | 78 | 11.9 | 13.8 | 71 |
| April | 17.2 | 14.1 | 8 | 47 | 78 | 13.2 | 15.2 | 77 |
| May | 20.3 | 16.9 | 6 | 37 | 75 | 14.3 | 17.9 | 89 |
| June | 24.8 | 21 | 3 | 14 | 72 | 14.9 | 22 | 95 |
| July | 27.8 | 24.1 | 2 | 9 | 69 | 14.7 | 25.3 | 93 |
| August | 28.3 | 24.8 | 4 | 25 | 69 | 13.8 | 26.3 | 86 |
| September | 25.5 | 22.8 | 10 | 63 | 71 | 12.5 | 24.8 | 81 |
| October | 22.5 | 19.9 | 10 | 63 | 75 | 11.2 | 22.3 | 81 |
| November | 18.1 | 15.8 | 11 | 80 | 75 | 10 | 18.7 | 74 |
| December | 15.2 | 13.1 | 8 | 51 | 76 | 9.4 | 15.7 | 69 |
See all twelve months in Palma, or where else to go in September.
Planning the rest of the trip
- Flight time to Palma how long you are actually in the air
- Palma time zone and the difference from home
- Days until your trip count down to the departure date