Acre Weather in September

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

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Rio Branco São Joaquim national park Recife Aquidauana

Are you planning a trip a to Acre, Brazil in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Acre in September

Acre, Brazil is a region in Brazil. The weather in Acre in September can be quite varied, with temperatures that range from pleasant to very hot and precipitation levels ranging from almost none to heavy.

Temperatures

During the day temperatures vary from pleasant in Santa Vitória do Palmar at 19°C (66°F) to very hot in Teresina at 38°C (100°F). At night it cools down to 24°C (75°F) in Teresina and 11°C (52°F) in Santa Vitória do Palmar. On average, September is the warmest month of the year in Acre, Brazil. So be prepared and pack summer clothes.

To explore the conditions in Acre, Brazil in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From almost no rainfall in Cabrobó with an average of 3.7 mm (0.1 in) to heavy rainfall in Arroio do Sal with 192 mm (7.6 in).

Average sunshine

Sunshine is fairly consistent across many areas. Rio Branco receives about 159 hours of sunlight in September, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore Acre by month

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

Best Places to Visit in Acre in September

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

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 Acre

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

Temperature range in Acre (September)

Precipitation variation in Acre (September)

Rio Branco

In September Rio Branco generally has very high temperatures with maximum daytime temperatures around 35°C (95°F), minimum nighttime temperatures around 22°C (72°F) and moderate monthly rainfall. So on average the conditions are unpleasant that month.

« August
September
October »
August
September
October
Max temperature
34°C (93°F)
35°C (95°F)
34°C (93°F)
Min temperature
21°C (70°F)
22°C (72°F)
23°C (73°F)
Monthly sun hours
182 hours
159 hours
164 hours
Monthly rainfall
41 mm (1.6 in)
86 mm (3.4 in)
147 mm (5.8 in)
Monthly rainy days
7 days
11 days
17 days
Weather conditions
tolerable
unpleasant
unpleasant
Climate in Rio Branco →

São Joaquim national park

In September São Joaquim national park generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 9°C (48°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
19°C (66°F)
21°C (70°F)
Min temperature
7°C (45°F)
9°C (48°F)
11°C (52°F)
Monthly sun hours
150 hours
143 hours
150 hours
Monthly rainfall
126 mm (5 in)
168 mm (6.6 in)
180 mm (7.1 in)
Monthly rainy days
15 days
19 days
20 days
Weather conditions
tolerable
tolerable
pleasant
Climate in São Joaquim national park →

Recife

In September Recife generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 23°C (73°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
28°C (82°F)
29°C (84°F)
30°C (86°F)
Min temperature
22°C (72°F)
23°C (73°F)
24°C (75°F)
Monthly sun hours
209 hours
217 hours
247 hours
Monthly rainfall
93 mm (3.7 in)
62 mm (2.4 in)
46 mm (1.8 in)
Monthly rainy days
26 days
23 days
16 days
Weather conditions
perfect
perfect
pleasant
Climate in Recife →

Aquidauana

In September Aquidauana generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 20°C (68°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
33°C (91°F)
34°C (93°F)
Min temperature
18°C (64°F)
20°C (68°F)
22°C (72°F)
Monthly rainfall
35 mm (1.4 in)
90 mm (3.5 in)
149 mm (5.9 in)
Monthly rainy days
4 days
6 days
11 days
Weather conditions
pleasant
pleasant
unpleasant
Climate in Aquidauana →

Arroio do Sal

In September Arroio do Sal generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 14°C (57°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
19°C (66°F)
20°C (68°F)
21°C (70°F)
Min temperature
13°C (55°F)
14°C (57°F)
17°C (63°F)
Monthly rainfall
145 mm (5.7 in)
192 mm (7.6 in)
205 mm (8.1 in)
Monthly rainy days
15 days
19 days
18 days
Weather conditions
tolerable
tolerable
unpleasant
Climate in Arroio do Sal →

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

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Rio Branco 35°C (95°F) 22°C (72°F) 86 mm (3.4 in)
São Joaquim national park 19°C (66°F) 9°C (48°F) 168 mm (6.6 in)
Recife 29°C (84°F) 23°C (73°F) 62 mm (2.4 in)
Aquidauana 33°C (91°F) 20°C (68°F) 90 mm (3.5 in)
Arroio do Sal 20°C (68°F) 14°C (57°F) 192 mm (7.6 in)
Ceará-Mirim 30°C (86°F) 23°C (73°F) 28 mm (1.1 in)

Acre weather in September: frequently asked questions

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

Expect poor weather across Acre, Brazil in September. The popular destination of Rio Branco averages 35°C (95°F) by day and 22°C (72°F) at night during this month.

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

Rio Branco averages a daytime maximum of 35°C (95°F) in September, with overnight lows close to 22°C (72°F).

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

Rain is generally moderate to light in Acre, Brazil during September, with Rio Branco averaging close to 86 mm (3.4 in).

Is September a Good Time to Visit Acre, Brazil?

In our view, September might not be the best time to travel to Acre, Brazil with often unpleasant weather in Rio Branco.

Generally speaking, the best visiting conditions can be found in May, June and July offering mostly tolerable weather in Rio Branco. The weather in January, February, March, August, September, October, 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 Acre.

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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