Click on a day for an hourly weather forecast
The temperatures in Estoril in September are comfortable with low of 18°C and and high up to 26°C.
You can expect a few rainy days in Estoril during September, but usually the weather is comfortable in September.
Our weather forecast can give you a great sense of what weather to expect in Estoril in September 2025.
If you’re planning to visit Estoril in the near future, we highly recommend that you review the 14 day weather forecast for Estoril before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 15° / 10° | 3 | 28 | 0 | 35 mm | Good | Estoril in January |
| February | 16° / 10° | 3 | 26 | 0 | 34 mm | Good | Estoril in February |
| March | 18° / 11° | 3 | 28 | 0 | 39 mm | Good | Estoril in March |
| April | 19° / 13° | 2 | 28 | 0 | 34 mm | Good | Estoril in April |
| May | 22° / 15° | 1 | 30 | 0 | 23 mm | Good | Estoril in May |
| June | 24° / 17° | 0 | 30 | 0 | 9 mm | Perfect | Estoril in June |
| July | 26° / 18° | 0 | 31 | 0 | 2 mm | Perfect | Estoril in July |
| August | 28° / 18° | 0 | 31 | 0 | 3 mm | Perfect | Estoril in August |
| September | 26° / 18° | 1 | 29 | 0 | 19 mm | Perfect | Estoril in September |
| October | 23° / 17° | 2 | 29 | 0 | 42 mm | Perfect | Estoril in October |
| November | 18° / 13° | 3 | 27 | 0 | 50 mm | Good | Estoril in November |
| December | 16° / 11° | 3 | 28 | 0 | 44 mm | Good | Estoril in December |