São Mateus Weather in September

During September, São Mateus experiences high daytime temperatures of 23°C (73°F) and cooler nights around 21°C (70°F). Expect quite a bit of rainfall. Around 66 mm (2.6 in) is typical.

Rainfall in São Mateus in September

Analyzing past climate data, one can expect approximately 15 days of rain, averaging 66 mm (2.6 in). With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in São Mateus in September

São Mateus in September has perfect weather. Days reach 23°C (73°F) and nights cool to 21°C (70°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are mild at around 21°C (70°F), which is comfortable for most people.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit São Mateus.

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 São Mateus's climate page.

São Mateus Temperature in September

Min Temperature 21°C (70°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 51%  

Precipitation 66 mm (2.6 in)  

Rainy days 15 days  

What to Wear in São Mateus in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days.

What To Do in São Mateus in September

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

Cycling

10/10

Walking

10/10

Camping

8/10

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 São Mateus's climate page.

More climate data for São Mateus

Temperature Rainfall

See the full São Mateus climate overview or explore weather in Portugal.