Mallorca or Algarve in September?
On climate data, Algarve comes out ahead overall in September. See the per-criterion details below.
MallorcaPhoto: Steffen Mokosch · CC BY-SA 4.0
AlgarvePhoto: Eurico Craveiro · CC BY-SA 4.0Key figures in September
| Criterion | Mallorca | Algarve |
|---|---|---|
| Average daily high | 26 °C | 25 °C |
| Average daily low | 22 °C | 19 °C |
| Sea | 25 °C ★ | 21 °C |
| Rainy days | 11 rainy days (est.) | 3 rainy days (est.) ★ |
| Sun | 6 h/day | 7 h/day ★ |
| Humidity | 70 % | 71 % |
Winner by travel type
Trade-offs
- Algarve is drier, with about 8 fewer rainy days.
- The sea at Mallorca is about 4 °C warmer.
Mallorca or Algarve in September: the short answer
In September, Algarve comes out ahead on the overall climate score (Mallorca 83/100 vs Algarve 90/100). That is a snapshot of one month, though — which one truly fits depends on what you want from the trip, so the breakdown below goes criterion by criterion.
This comparison focuses on September as a representative month for the pair; for any other month, use each destination's month-by-month pages. Across the whole year Mallorca averages a climate score of 69/100, Algarve 72/100. Both profiles below are historical monthly averages, not a forecast.
Weather in September, side by side
The average daily high is about 26 °C in Mallorca and 25 °C in Algarve — warmer in Mallorca. Average daily lows are around 22 °C versus 19 °C.
On rain, Mallorca sees about 11 rainy days in September and Algarve about 3 — drier in Algarve. Algarve gets more sunshine (6 vs 7 hours a day).
Sea temperature and swimming
In September the water is about 25 °C at Mallorca and 21 °C at Algarve — warmer for swimming at Mallorca. Over the year, Mallorca is comfortable for swimming (from ~21 °C) in June, July, August, September and October, Algarve in August and September. Peak sea warmth is August for Mallorca and August for Algarve.
Rain and sun across the year
Over a full year Mallorca records roughly 88 rainy days and Algarve about 66 — the drier of the two overall is Algarve. At their sunniest, Mallorca reaches about 9 hours of sun a day (June) and Algarve about 10 (July). If dependable dry, sunny weather is your top priority, weigh these annual totals alongside the single month above.
Best time to visit each
Climatically, Mallorca is at its best in June, July, August and September, while Algarve peaks in June, July, August and September. If your dates are fixed, pick the destination whose strong season overlaps them; if you are flexible, plan around these windows.
Which suits which kind of trip
Based on the September scores for each travel style:
Beach & swimming: Algarve scores higher in September (Mallorca 88 vs Algarve 90).
City breaks: Algarve scores higher in September (Mallorca 82 vs Algarve 95).
Active & hiking: Algarve scores higher in September (Mallorca 67 vs Algarve 83).
Family: Algarve scores higher in September (Mallorca 89 vs Algarve 92).
Verdict: which should you pick?
In September, Algarve leads across every scored category here — the overall score and each travel type — so on the climate data it is the clearer pick this month. Over the year, Algarve carries the higher overall climate score. Your own priority (sun, sea, low rain or sightseeing comfort) still matters, and the month-by-month pages for each destination give you the full picture before you book.