Weather in Natal in September 2025
Average weather
Average temperature in Natal in September
The expected average maximum temperature in September is +82°F with a maximum of +82°F and a minimum of +73°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +82°F to +82°F.
Is Natal warm or cold in September?
Natal is typically warm in September.
Maximum temperatures go up compared to the previous month from +81°F to +81°F. The minimum temperature also goes up from +73°F to +75°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Natal:
Water temperature in Natal in September
Water in Natal in September is Warm. It varies from +79°F to +81°F, with an average of +80°F. This is almost similar to the air temperature, which averages +81°F.
The water temperature in September is one of the coldest of the entire year:
Can you swim in Natal in September?
Climate in Natal in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +81°F | +81°F | +82°F | ||||
| Min. temperature | ||||||
| +70°F | +72°F | +72°F | ||||
| Max. temperature | ||||||
| +86°F | +88°F | +88°F | ||||
| Rainfall | ||||||
| 31 mm | 21 mm | 15 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 4 m/s | ||||
| Avg. water temperature | ||||||
| +80°F | +80°F | +80°F | ||||
| Humidity | ||||||
| 79% | 77% | 74% | ||||
| Air pressure | ||||||
| 1014 HPa | 1014 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 3 | 2 | 2 | ||||
| Cloudy days | ||||||
| 6 | 9 | 11 | ||||
| Rainy days | ||||||
| 22 | 19 | 18 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as good as in August. The temperature levels stay the same in the area of +81°F for average maximum temperature during the day. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 31 mm to 21 mm. It feels drier, as humidity decreases from 79% to 77%. The average wind speed doesn’t change much during September, staying around 4 m/s. The days becoming less sunny, going from 3 sunny days in August to 2 in September.
October brings much the same weather, it remains good.
Wind
The average wind speed is 4 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Natal is gradually increasing during September, going from 3 m/s to 5 m/s over the course of the month.
Rain
How was the weather last September in Natal?
Climate Change Over the Years
The climate in Natal in September 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 (+86°F). The driest year was 1993 with only 299 mm of rainfall, and the wettest year was 1985 with 1504 mm.
FAQ
Is September a good time to visit Natal?
Can you sunbathe in Natal in September?
Can you swim in Natal in September?
Is Natal rainy in September?
Is it sunny in Natal in September?
Other cities in Brazil
Monthly weather in Natal
Source of the data
For this page, we’ve looked at the typical weather in Natal, 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.