January in Amazon Rainforest — the hardest end of the year
Hardest · 4.2/10Days in January average 26°C (79°F) and humidity near 91% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 312 mm: only about 18 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 4.2/10 on the same scale — 7th of 12 months, versus 6.1/10 for the best month here.
Expect mid-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, September is materially better in Amazon Rainforest — 1.9 points higher on the same scale.
February in Amazon Rainforest — the hardest end of the year
Hardest · 3.9/10Days in February average 26°C (79°F) and humidity near 91% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 351 mm: only about 16 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 3.9/10 on the same scale — 9th of 12 months, versus 6.1/10 for the best month here.
Budget for low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, September is materially better in Amazon Rainforest — 2.2 points higher on the same scale.
March in Amazon Rainforest — off-season conditions
Hardest · 4/10March averages 26°C (79°F) and humidity near 91%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
289 mm of rain puts this in monsoon territory — about 17 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 4/10 here, 8th of 12 months, against 6.1/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? September scores 2.1 points higher here — enough to change the trip.
April in Amazon Rainforest: expect compromises
Hardest · 3.8/10Days in April average 26°C (80°F) and humidity near 90% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 270 mm: only about 16 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 3.8/10 on the same scale — 10th of 12 months, versus 6.1/10 for the best month here.
Budget for low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, September is materially better in Amazon Rainforest — 2.3 points higher on the same scale.
May in Amazon Rainforest — off-season conditions
Hardest · 3.8/10May averages 26°C (79°F) and humidity near 92%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
233 mm of rain puts this in monsoon territory — about 15 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 3.8/10 here, 11th of 12 months, against 6.1/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? September scores 2.3 points higher here — enough to change the trip.
June in Amazon Rainforest — the hardest end of the year
Hardest · 4.8/10Days in June average 26°C (79°F) and humidity near 90% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
130 mm of rain signals a properly wet month, with only about 16 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 4.8/10 on the same scale — 5th of 12 months, versus 6.1/10 for the best month here.
Expect mid-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
July in Amazon Rainforest: mixed conditions, plan around the weather
Trade-offs · 5.7/10Days in July average 27°C (80°F) and humidity near 88% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 79 mm of rain this month — a flexible day or two helps — with about 21 days with 6+ hours of sunshine and 11.8 hours of daylight to work around it.
That is 5.7/10 on the same scale — 3rd of 12 months, versus 6.1/10 for the best month here.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer, footwear you can get muddy.
August in Amazon Rainforest — middling scores, decent value
Trade-offs · 6/10August averages 28°C (83°F) and humidity near 79%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 59 mm, so plan one flexible day in three; you still get about 24 days with 6+ hours of sunshine and 11.9 hours of daylight.
It scores 6/10 here, 2nd of 12 months, against 6.1/10 in the destination's best month.
Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer, footwear you can get muddy.
September in Amazon Rainforest — the year's strongest window
Best window · 6.1/10September 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.
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.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer, footwear you can get muddy.
October in Amazon Rainforest: mixed conditions, plan around the weather
Trade-offs · 5.3/10Days in October average 30°C (87°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
122 mm of rain makes this a wet month here, though with about 22 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 5.3/10 on the same scale — 4th of 12 months, versus 6.1/10 for the best month here.
Budget for mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
November in Amazon Rainforest — off-season conditions
Hardest · 4.7/10Days in November average 29°C (85°F) and humidity near 74% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
117 mm of rain signals a properly wet month, with only about 17 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 4.7/10 on the same scale — 6th of 12 months, versus 6.1/10 for the best month here.
Budget for mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
December in Amazon Rainforest — the hardest end of the year
Hardest · 3.8/10December averages 28°C (82°F) and humidity near 85%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
239 mm of rain puts this in monsoon territory — about 18 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 3.8/10 here, 12th of 12 months, against 6.1/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? September scores 2.3 points higher here — enough to change the trip.
