ERA5 almanac comparison — 8 years of real data
Marrakech vs Seville: weather in September
Marrakech edges out Seville for sun in September: 83% clear historically versus 76% (8-year ERA5 average, a 7-point gap). Both are viable — Marrakech is the safer bet.
Marrakech
Morocco
- Clear days, September
- 83%
- Sample size
- n=240 days
- Avg high
- 92°F
- Early September (1st–15th)
- 79%
- Late September (16th–end)
- 87%
- Rain frequency
- 4% of days
Seville
Spain
- Clear days, September
- 76%
- Sample size
- n=240 days
- Avg high
- 89°F
- Early September (1st–15th)
- 79%
- Late September (16th–end)
- 74%
- Rain frequency
- 13% of days
Frequently asked
Is Marrakech or Seville warmer in September?
Marrakech runs warmer by day in September. Marrakech averages highs of 92°F (highs n=240 days); Seville averages highs of 89°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Marrakech or Seville in September?
Days with measurable rain: Marrakech 4%, Seville 13% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in September, Marrakech or Seville?
Marrakech edges out Seville for sun in September: 83% clear historically versus 76% (8-year ERA5 average, a 7-point gap). Both are viable — Marrakech is the safer bet.
Compare Marrakech vs Seville in another month
All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.