Piauí Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Piauí, Brazil in September.

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Teresina Parnaíba Barra Grande Luis Correia

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

What to Expect in Piauí in September

Piauí, Brazil 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 (93°F) to very hot in Teresina at 38°C (100°F). Nighttime temperatures generally drop to 24°C (75°F) in Teresina and 25°C (77°F) 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, Brazil, refer to the map provided below.

Precipitation

September is a very dry month with an average rainfall of around 4.7 mm (0.2 in) in Teresina.

Average sunshine

Sunshine is generally plentiful throughout many areas. Teresina enjoys about 280 hours of sunlight, ideal for those seeking sunny weather.

Explore Piauí by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Piauí in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Piauí.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Piauí

What is the weather like in September for some of the most popular destinations in Piauí, Brazil?

Temperature range in Piauí (September)

Precipitation variation in Piauí (September)

Teresina

In September Teresina generally has extremely high temperatures with maximum daytime temperatures around 38°C (100°F), minimum nighttime temperatures around 24°C (75°F) and almost no monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
36°C (97°F)
38°C (100°F)
38°C (100°F)
Min temperature
23°C (73°F)
24°C (75°F)
25°C (77°F)
Monthly sun hours
316 hours
280 hours
264 hours
Monthly rainfall
2.9 mm (0.1 in)
4.7 mm (0.2 in)
18 mm (0.7 in)
Monthly rainy days
11 days
10 days
8 days
Weather conditions
unpleasant
unpleasant
unpleasant
Climate in Teresina →

Parnaíba

In September Parnaíba generally has very high temperatures with maximum daytime temperatures around 34°C (93°F), minimum nighttime temperatures around 25°C (77°F) and almost no monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
34°C (93°F)
34°C (93°F)
34°C (93°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly rainfall
3.8 mm (0.1 in)
2.3 mm (0.1 in)
7.5 mm (0.3 in)
Monthly rainy days
10 days
9 days
7 days
Weather conditions
pleasant
pleasant
pleasant
Climate in Parnaíba →

Barra Grande

In September Barra Grande generally has very high temperatures with maximum daytime temperatures around 34°C (93°F), minimum nighttime temperatures around 25°C (77°F) and almost no monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
34°C (93°F)
34°C (93°F)
34°C (93°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly rainfall
2.9 mm (0.1 in)
1.7 mm (0.1 in)
6.6 mm (0.3 in)
Monthly rainy days
10 days
10 days
7 days
Weather conditions
pleasant
pleasant
pleasant
Climate in Barra Grande →

Luis Correia

In September Luis Correia generally has very high temperatures with maximum daytime temperatures around 34°C (93°F), minimum nighttime temperatures around 25°C (77°F) and almost no monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
33°C (91°F)
34°C (93°F)
33°C (91°F)
Min temperature
25°C (77°F)
25°C (77°F)
26°C (79°F)
Monthly rainfall
3.5 mm (0.1 in)
2.2 mm (0.1 in)
7.4 mm (0.3 in)
Monthly rainy days
10 days
9 days
7 days
Weather conditions
perfect
pleasant
perfect
Climate in Luis Correia →

Coqueiro

In September Coqueiro generally has very high temperatures with maximum daytime temperatures around 34°C (93°F), minimum nighttime temperatures around 25°C (77°F) and almost no monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
34°C (93°F)
34°C (93°F)
34°C (93°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly rainfall
3.1 mm (0.1 in)
1.9 mm (0.1 in)
7 mm (0.3 in)
Monthly rainy days
10 days
10 days
7 days
Weather conditions
pleasant
pleasant
pleasant
Climate in Coqueiro →

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

Popular cities in September

Day & night temperatures, rainfall and average weather in Piauí in September.

City Weather Day temp Night temp Rainfall
Teresina 38°C (100°F) 24°C (75°F) 4.7 mm (0.2 in)
Parnaíba 34°C (93°F) 25°C (77°F) 2.3 mm (0.1 in)
Barra Grande 34°C (93°F) 25°C (77°F) 1.7 mm (0.1 in)
Luis Correia 34°C (93°F) 25°C (77°F) 2.2 mm (0.1 in)
Coqueiro 34°C (93°F) 25°C (77°F) 1.9 mm (0.1 in)
Ponta do Anel 34°C (93°F) 25°C (77°F) 1.8 mm (0.1 in)

Piauí weather in September: frequently asked questions

What is the weather like in Piauí, Brazil in September?

In September, Piauí, Brazil generally has poor weather conditions. Teresina sees daytime temperatures near 38°C (100°F), with nights cooling to roughly 24°C (75°F).

What is the average temperature in Piauí, Brazil in September?

Daytime temperatures in Teresina peak at roughly 38°C (100°F) in September, dropping to about 24°C (75°F) overnight.

Does Piauí, Brazil get a lot of rain in September?

September is on the drier side in Piauí, Brazil. Teresina averages only about 4.7 mm (0.2 in), with most days staying dry.

Is September a Good Time to Visit Piauí, Brazil?

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

Generally speaking, the best visiting conditions can be found in offering mostly poor weather in Teresina.

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.

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