Looking back at September 2026 in Mallorca: 60 mm of rain on just three days
Wetter Mallorca editorial team · · 2 min read
September 2026 brought Palma slightly more rain than usual, but on fewer days: 60.4 mm according to AEMET, of which 59.9 mm fell on 9, 16 and 18 September. The 2011 to 2025 mean is 56.3 mm over 5.1 rainy days. Highs averaged 30.2 °C, 1.9 degrees above the mean.
In Mallorca, September is the month when summer meets the first heavy rain. In 2026 both sides showed clearly. The figures use the daily records of the AEMET station Palma Puerto (B228) for all 30 days, downloaded from AEMET OpenData, and compare them with the same station's 2011 to 2025 mean.
September 2026 in Palma in figures
- Average high: 30.2 °C, against a 2011 to 2025 mean of 28.3 °C
- Average low: 21.8 °C, against a 2011 to 2025 mean of 21.0 °C
- Highest reading: 35.9 °C on 6 September
- Lowest reading: 18.8 °C on 19 September
- Rainfall: 60.4 mm, with 3 days reaching 1 mm. An average September brings 56.3 mm over 5.1 rainy days.
Rain in Palma came in three bursts
The monthly total was slightly above the mean but spread over fewer days than usual. Almost all of it fell on three days:
- 9 September: 23.7 mm
- 16 September: 23.3 mm
- 18 September: 12.9 mm
Together that makes 59.9 mm, plus 0.5 mm on 17 September. Every other day in Palma stayed dry or below 1 mm. Worth noting: these values come from the station at Palma's port. Other parts of the island can record very different amounts in bursts like these.
Five September days in Palma above the highest value for their date
The heat lasted well into the month. On five days the high beat the highest value the station had recorded for that date between 2011 and 2025:
- 3 September: 34.1 °C, previously 32.7 °C (2022)
- 6 September: 35.9 °C, previously 33.5 °C (2016)
- 7 September: 34.3 °C, previously 31.8 °C (2016)
- 22 September: 31.5 °C, previously 28.7 °C (2018)
- 28 September: 29.5 °C, previously 29.1 °C (2011)
A high for one date in a 15-year series is not an all-time station record.
On 13 days the high reached at least 30 °C, and on 24 nights it stayed at or above 20 °C.
What September 2026 means for Mallorca
The reading is clear: the month was warmer than usual and its rain more concentrated. Averages are on the September weather page, which are averages and not a forecast. Current AEMET warnings are on the weather warnings page, and the climate table compares every month.
Frequently asked questions
How much rain fell in Mallorca in September 2026?
The AEMET station Palma Puerto recorded 60.4 mm, slightly above the 56.3 mm mean. Almost all of it fell on three days: 9, 16 and 18 September.
How warm was September 2026 in Palma?
Highs averaged 30.2 °C, 1.9 degrees above the 2011 to 2025 mean. The highest reading was 35.9 °C on 6 September.
Which September 2026 days in Palma were above the highest value for their date?
3, 6, 7, 22 and 28 September were above the highest value for their date between 2011 and 2025, most clearly 6 September with 35.9 °C against 33.5 °C. They are not all-time station records.
Do the September figures apply to all of Mallorca?
No, they come from the AEMET station Palma Puerto. Rainfall in particular can differ a lot elsewhere in Mallorca.
Text written with AI and automatically checked against editorial rules before publication. Figures come from the linked sources. Wetter Mallorca is not an official weather service.
