September · Brazil
Best time to visit Amazon Rainforest in September Weather, crowds & prices
Weather in Amazon Rainforest in September
Average temperature 30°C, 65 mm of rain, about 23 days with 6+ hours of sunshine and 71% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.1/10
Ranked #1 of 12 months
- Avg temp
- 30°C
- Rainfall
- 65 mm
- Humidity
- 71%
- Days with 6h+ sun
- 23
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Amazon Rainforest scores 6.1/10 for nature and wildlife travel - the single best month of the year. Expect around 30°C, 65 mm of rain, and roughly 23 days with 6+ hours of sunshine this month.
The Amazon Rainforest is Earth's largest jungle biome-river lodges, canopy walks, and wildlife-rich tributaries near Manaus. Best window: the drier months outside peak monsoon.
September in Amazon Rainforest — the year's strongest window
September averages 30°C (86°F) and humidity near 71%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 65 mm, so plan one flexible day in three; you still get about 23 days with 6+ hours of sunshine and 12 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Amazon Rainforest at 6.1/10 — the reference point every other month on this page is measured against.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer, footwear you can get muddy.
Figure on peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Amazon Rainforest in September?
- In September, Amazon Rainforest averages 30°C, 65 mm of rain, and about 23 days with 6+ hours of sunshine. Its climate-comfort score is 6.1/10.
- Is September a good time to visit Amazon Rainforest?
- September earns a 6.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Amazon Rainforest in September?
- Expect about 65 mm of rain in September. Average humidity is 71% and there are about 23 days with 6+ hours of sunshine.
Curated in Amazon Rainforest
Tickets & experiences
Things to do in Amazon Rainforest
Amazon Rainforest, Brazil. Live activities and tours from GetYourGuide, matched to this destination.