Wetter Mallorca · Independent weather site
Weather in Mallorca on 21 September
What 21 September was like in Palma de Mallorca from 2011 to 2025: averages, records and every single measurement.
Updated on 2/10/20264 Sources
Photo: Marc Ryckaert, CC BY-SA 4.0, Wikimedia Commons
Average high27.7 °C
Average low20.8 °C
Years with rain3 of 15 years
Record30.4 °C (2019)
Averages of past years, not a forecast. Station: Palma Puerto (AEMET B228). Fuente: AEMET.
In short
On 21 September Palma de Mallorca reaches an average of 27.7 °C by day and 20.8 °C at night. In 3 of 15 years at least 1 mm of rain fell on this day. The highest value was 30.4 °C in 2019, the lowest 18.4 °C in 2015. These are averages for 2011 to 2025, not a forecast.
On this page
121 September, year by year
| Year | High | Low | Rainfall |
|---|---|---|---|
| 2025 | 29.0 °C | 23.6 °C | 2.3 mm |
| 2024 | 25.9 °C | 20.2 °C | 1.9 mm |
| 2023 | 27.8 °C | 21.7 °C | 0.0 mm |
| 2022 | 28.7 °C | 22.2 °C | 0.0 mm |
| 2021 | 24.0 °C | 19.0 °C | 0.2 mm |
| 2020 | 28.1 °C | 21.6 °C | 0.0 mm |
| 2019 | 30.4 °C | 24.2 °C | 0.0 mm |
| 2018 | 29.9 °C | 20.3 °C | 0.0 mm |
| 2017 | 26.3 °C | 18.8 °C | 0.0 mm |
| 2016 | 27.2 °C | 18.5 °C | 0.1 mm |
| 2015 | 27.0 °C | 18.4 °C | 0.0 mm |
| 2014 | 29.2 °C | 23.8 °C | 0.0 mm |
| 2013 | 26.4 °C | 19.4 °C | 5.2 mm |
| 2012 | 29.8 °C | 20.4 °C | 0.0 mm |
| 2011 | 26.3 °C | 19.6 °C | 0.0 mm |
In 2025 this day measured 29.0 °C by day and 23.6 °C at night.
2What suits 21 September in Mallorca
Swimming weather: beach, cove or a day on a boat. Matching pages in the travel planner: Beaches, Boat trips, With kids.
3The day in the calendar
Frequently asked questions
How warm is it in Mallorca on 21 September?
On 21 September the average daytime high in Palma de Mallorca is 27.7 °C and the average low is 20.8 °C. These are averages for 2011 to 2025 at the station Palma Puerto (AEMET B228), not a forecast for a particular year.
Does it often rain in Mallorca on 21 September?
In 3 of 15 years between 2011 and 2025 at least 1 mm of rain fell in Palma de Mallorca on 21 September. A rain day here means a day with 1 mm of precipitation or more.
What was the weather like in Mallorca on 21 September 2025?
In 2025 this day measured 29.0 °C by day and 23.6 °C at night. The measurement comes from the station Palma Puerto (AEMET B228).
What was the warmest 21 September in Mallorca since 2011?
The warmest 21 September since 2011 in Palma de Mallorca was in 2019 with 30.4 °C. The coldest low on this date was 18.4 °C in 2015.
Sources (4)
Sources
- AEMET OpenData, daily climate values, checked on 3/10/2026
- AEMET station inventory, station B228 Palma, Puerto (39.5542 N, 2.6253 E, 3 m), checked on 3/10/2026
- NOAA OISST v2.1, daily sea surface temperature, via NOAA CoastWatch ERDDAP, checked on 2/10/2026
- MET Norway, Locationforecast 2.0, checked on 2/10/2026
Written and maintained by the Wetter Mallorca editorial team. Independent site, not an official weather service.
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