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Porto Seguro in August: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Porto Seguro in August will be like? Take a look at our weather guide for Porto Seguro, based on historical data.
Check flight prices to Porto Seguro on Avionero:
August

Weather in Porto Seguro in August 2025

OK Weather
Warm
🌧️
Rainy
If you plan to visit Porto Seguro in August, the weather is typically alright, with an average high temperature of +79°F during the day and approximately 2 sunny days. Expect some rainy, though, as there are typically 23 rainy days in the month and around 55 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • August is usually the driest month of the year in Porto Seguro

Average weather

☀️
+79°F
Avg. max. temperature
+61°F
Min.
+86°F
Max.
55 mm
Total precipitation
82%
Avg. humidity
3 m/s
Avg. wind
2 ☀️
Sunny Days
6 ⛅️
Cloudy
23 🌦
Rainy
Our opinion: Porto Seguro has OK weather in August.

Average temperature in Porto Seguro in August

Here are the expected maximum, average and minimum temperatures in Porto Seguro for August based on the historical data.
Last Year
Historical Data

Going from a maximum of +86°F during the day to a minimum of +64°F during the night, the temperature in August averages around +81°F.

The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +77°F to +82°F.

Is Porto Seguro warm or cold in August?

Porto Seguro is typically warm in August.

Maximum temperatures go up compared to the previous month from +77°F to +79°F. The minimum temperature also goes up from +68°F to +68°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

August is one of the coolest months in Porto Seguro, here is the comparison with other months:

Climate in Porto Seguro in August

Porto Seguro weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+77°F+79°F+79°F
Min. temperature
+61°F+61°F+61°F
Max. temperature
+86°F+86°F+88°F
Rainfall
66 mm55 mm54 mm
Wind
2 m/s3 m/s3 m/s
Humidity
84%82%82%
Air pressure
1019 HPa1019 HPa1017 HPa
Sunny days
222
Cloudy days
467
Rainy days
252321
Snowy days
000

August weather is still as ok as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +77°F to +79°F during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 66 mm to 55 mm. It feels drier, as humidity decreases from 84% to 82%. Winds are stronger in comparison to July, going up from 2 m/s to 3 m/s on average. The amount of sunny days stay about the same, averaging 2 sunny days during the month.

September brings much the same weather, it remains ok.

Wind

Wind speed in Porto Seguro in August based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Porto Seguro is gradually increasing during August, going from 2 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Porto Seguro based on historical data.
Last Year
Historical Data
Typically, there is a 48% chance of rain on an average day in August, with total rainfall of approximately 45 mm. The maximum amount of rainfall per day is around 23 mm, which is considered light rain. August is a pretty wet month with over 15 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how August is compared with other months in the amount of precipitation, total mm:
Porto Seguro wettest month is November, where a typical day has a 80% chance of precipitation and 146 mm of rainfall per day. September, on the other hand, is the driest month with a mere 70% chance of precipitation and 54 mm of rainfall per day.

How was the weather last August in Porto Seguro?

This is the weather in Porto Seguro in August 2023:
1 August
☀️
+77°F
2 August
☁️
+77°F
3 August
☀️
+80°F
4 August
☀️
+80°F
5 August
☀️
+81°F
6 August
☀️
+79°F
7 August
☁️
+76°F
8 August
☁️
+80°F
9 August
☁️
+79°F
10 August
☁️
+78°F
11 August
☁️
+78°F
12 August
☁️
+79°F
13 August
☀️
+80°F
14 August
☁️
+78°F
15 August
☁️
+78°F
16 August
☁️
+79°F
17 August
☁️
+77°F
18 August
☁️
+78°F
19 August
☁️
+82°F
20 August
☀️
+83°F
21 August
🌧️
+79°F
22 August
🌧️
+83°F
23 August
☁️
+83°F
24 August
☀️
+84°F
25 August
☀️
+86°F
26 August
☁️
+82°F
27 August
🌧️
+79°F
28 August
🌧️
+80°F
29 August
☁️
+77°F
30 August
☁️
+82°F
31 August
☁️
+82°F
In August 2023 Porto Seguro had 9 sunny days, 18 cloudy days, and 4 rainy days. The average maximum temperature was +81°F, with an absolute maximum of +86°F and a minimum of +77°F. The average humidity was 83%, with a maximum of 95% and a minimum of 61%. The average wind speed was 3 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change Over the Years

This is how Porto Seguro climate has changed over the last 43 years.

The climate in Porto Seguro in August has not changed that much over the last 43 years.

The average temperature was the lowest in 1981 (+80°F) and the highest in 2019 (+84°F). The driest year was 2015 with only 699 mm of rainfall, and the wettest year was 1985 with 1566 mm.

FAQ

Frequently asked questions about the weather in Porto Seguro in August:

Is August a good time to visit Porto Seguro?

It’s always a good time to visit Porto Seguro, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Porto Seguro in August?

August is warm in Porto Seguro. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Porto Seguro rainy in August?

Porto Seguro is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Porto Seguro in August?

Usually, it’s not very sunny in Porto Seguro in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Brazil

Check out the weather for other cities in Brazil.

Monthly weather in Porto Seguro

Source of the data

For this page, we’ve looked at the typical weather in Porto Seguro, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.