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Weather in September in Piauí

Planning a journey to Piauí this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in Piauí in September?

Piauí is a region in Brazil. September in Piauí generally has temperatures that range from very warm to very hot, with almost no precipitation.

Temperatures

The average maximum daytime temperatures vary from very warm in Luis Correia at 34°C to very hot in Teresina at 38°C. Nighttime temperatures generally drop to 24°C in Teresina and 25°C in Luis Correia. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

For specific regional insights in Piauí, refer to the map provided below.

Precipitation

September is a very dry month with an average rainfall of around 4.7 mm in Teresina.

Average sunshine

The city Teresina usually sees around 280 hours of sunlight, indicating many sunny days.

For more details on the yearly climate, visit our Piauí climate page.

Where to go in Piauí in September

Find more information for the most popular destinations in the Piauí on the map below. Click on a destination dot for more details.

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Marker
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

Check the conditions for any month of the year.

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

Popular destinations

What is the weather like in September for the 5 most popular destinations in Piauí?

Teresina

In September Teresina generally has extremely high temperatures with maximum daytime temperatures around 38°C, minimum nighttime temperatures around 24°C and almost no monthly rainfall. So on average the conditions are unpleasant that month.

Teresina
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
36°C 
23°C 
316 hours 
2.9 mm 
11 days 
38°C 
24°C 
280 hours 
4.7 mm 
10 days 
October   >> October
>>  
38°C 
25°C 
264 hours 
18 mm 
8 days 
Climate in Teresina

Parnaíba

In September Parnaíba generally has very high temperatures with maximum daytime temperatures around 34°C, minimum nighttime temperatures around 25°C and almost no monthly rainfall. So on average the conditions are pleasant that month.

Parnaíba
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
34°C 
25°C 
3.8 mm 
10 days 
34°C 
25°C 
2.3 mm 
9 days 
October   >> October
>>  
34°C 
25°C 
7.5 mm 
7 days 
Climate in Parnaíba

Barra Grande

In September Barra Grande generally has very high temperatures with maximum daytime temperatures around 34°C, minimum nighttime temperatures around 25°C and almost no monthly rainfall. So on average the conditions are pleasant that month.

Barra Grande
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
34°C 
25°C 
2.9 mm 
10 days 
34°C 
25°C 
1.7 mm 
10 days 
October   >> October
>>  
34°C 
25°C 
6.6 mm 
7 days 
Climate in Barra Grande

Luis Correia

In September Luis Correia generally has very high temperatures with maximum daytime temperatures around 34°C, minimum nighttime temperatures around 25°C and almost no monthly rainfall. So on average the conditions are pleasant that month.

Luis Correia
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
33°C 
25°C 
3.5 mm 
10 days 
34°C 
25°C 
2.2 mm 
9 days 
October   >> October
>>  
33°C 
26°C 
7.4 mm 
7 days 
Climate in Luis Correia

Coqueiro

In September Coqueiro generally has very high temperatures with maximum daytime temperatures around 34°C, minimum nighttime temperatures around 25°C and almost no monthly rainfall. So on average the conditions are pleasant that month.

Coqueiro
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
34°C 
25°C 
3.1 mm 
10 days 
34°C 
25°C 
1.9 mm 
10 days 
October   >> October
>>  
34°C 
25°C 
7 mm 
7 days 
Climate in Coqueiro

Is your destination not in the list? Have a look at other destinations in Piauí, in Brazil.

Is September the best time to visit Piauí?

In our opinion, September may not be the ideal time to visit Piauí due to the typically unpleasant weather in Teresina.

Generally speaking, the best visiting conditions can be found in June offering mostly pleasant weather in Teresina. The weather in January, February, March, April, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Piauí.

Weather and climate has detailed information for every country in the world. Are you going to Brazil? Get detailed historical weather averages for many cities in Brazil.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.