Santo Isidoro Weather in September

With daytime temperatures of 22°C (72°F) and nighttime lows of 18°C (64°F), September in Santo Isidoro brings high temperatures during the day. The perfect weather makes it an appealing time to visit.

Rainfall in Santo Isidoro in September

The climate data from previous years indicates about 7 days of rain, averaging 33 mm (1.3 in) for the month. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.

Temperature in Santo Isidoro in September

September is a perfect month in Santo Isidoro, with 22°C (72°F) during the day and 18°C (64°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Santo Isidoro in September

Expect sunny days throughout the month, with an estimated 278 hours of sunshine. This makes it a pleasant time to visit Santo Isidoro.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August, September and October typically offer the best weather for Santo Isidoro.

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For a detailed overview over the year and the best time to visit Portugal, check out our Santo Isidoro's climate page.

Santo Isidoro Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 22%  

Precipitation 33 mm (1.3 in)  

Rainy days 7 days  

Humidity 75% *  

Sunshine 278 hours *  

Percentage Sunshine 75% *  

* Data from: Cascais, Portugal (32 KM, 20 Miles).

What to Wear in Santo Isidoro in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Light rain is possible, so consider bringing a small umbrella or rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Santo Isidoro in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

10/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Portugal, check out our Santo Isidoro's climate page.

More climate data for Santo Isidoro

Temperature Rainfall Sunshine Humidity

See the full Santo Isidoro climate overview or explore weather in Portugal.