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Rondônia Weather in September
In Rondônia, September brings very high daytime temperatures around 35°C (95°F), with nights cooling to 23°C (73°F). Expect quite a bit of rainfall this month.
Rainfall in Rondônia in September
Records from the past 30 years suggest around 7 days of rain, with 88 mm (3.5 in) average for the month. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in Rondônia in September
In September, expect very high temperatures in Rondônia, with highs of 35°C (95°F) and lows of 23°C (73°F) at night. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. Nights are mild at around 23°C (73°F), which is comfortable for most people.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Rondônia. Our weather planner can help you explore destinations with more pleasant weather conditions.
Rondônia Temperature in September
Min Temperature
23°C (73°F)
Max Temperature
35°C (95°F)
Chance of Rain
22%
Precipitation
88 mm (3.5 in)
Rainy days
7 days
Rondônia Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rondônia - and find the best time to visit.
Best Places in Brazil in September
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in September →
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).
What to Wear in Rondônia in September
Hot weather in September means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in Rondônia in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Rondônia 3-Day Forecast
More climate data for Rondônia
See the full Rondônia climate overview or explore weather in Brazil.
Popular in September
Where to go in September - average daytime high across popular destinations.
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