January in Alter do Chão — workable with trade-offs
Trade-offs · 6.6/10January averages 27°C (81°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
222 mm of rain puts this in monsoon territory — about 19 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.6/10 here, 8th of 12 months, against 9.9/10 in the destination's best month.
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.
If your dates are flexible, September is materially better in Alter do Chão — 3.3 points higher on the same scale.
February in Alter do Chão — workable with trade-offs
Trade-offs · 6.6/10February averages 27°C (81°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 192 mm this is a genuinely wet month: about 18 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.6/10 here, 9th of 12 months, against 9.9/10 in the destination's best month.
Expect 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.
If your dates are flexible, September is materially better in Alter do Chão — 3.3 points higher on the same scale.
March in Alter do Chão — workable with trade-offs
Trade-offs · 6.3/10March averages 27°C (80°F) with humidity around 86%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
280 mm of rain puts this in monsoon territory — about 19 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.3/10 here, 10th of 12 months, against 9.9/10 in the destination's best month.
Expect 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.
If your dates are flexible, September is materially better in Alter do Chão — 3.6 points higher on the same scale.
April in Alter do Chão — workable with trade-offs
Trade-offs · 6.1/10April averages 27°C (80°F) with humidity around 87%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
236 mm of rain puts this in monsoon territory — about 17 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.1/10 here, 12th of 12 months, against 9.9/10 in the destination's best month.
Expect 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.
If your dates are flexible, September is materially better in Alter do Chão — 3.8 points higher on the same scale.
May in Alter do Chão — workable with trade-offs
Trade-offs · 6.3/10May averages 27°C (80°F) with humidity around 89%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
208 mm of rain puts this in monsoon territory — about 17 sunny days across the whole month, and multi-day washouts are normal.
It scores 6.3/10 here, 11th of 12 months, against 9.9/10 in the destination's best month.
Expect 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.
If your dates are flexible, September is materially better in Alter do Chão — 3.6 points higher on the same scale.
June in Alter do Chão — reliably good (7th best month)
Good · 7.9/10June averages 27°C (80°F) with humidity around 87%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 91 mm, so plan one flexible day in three; you still get about 19 sunny days and 11.9 hours of daylight.
It scores 7.9/10 here, 7th of 12 months, against 9.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, September is materially better in Alter do Chão — 2 points higher on the same scale.
July in Alter do Chão — the year's strongest window
Best window · 9.1/10July averages 28°C (82°F) with humidity around 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 53 mm, so plan one flexible day in three; you still get about 23 sunny days and 11.9 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Alter do Chão at 9.1/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and this is one of the busiest months here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
August in Alter do Chão — the year's strongest window
Best window · 9.7/10August averages 30°C (85°F) with humidity around 71%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 34 mm of rain — occasional showers rather than washed-out days — alongside about 27 sunny days and 11.9 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Alter do Chão at 9.7/10 — the reference point every other month on this page is measured against.
Expect 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.
September in Alter do Chão — the year's strongest window
Best window · 9.9/10September averages 32°C (89°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 18 mm of rain — occasional showers rather than washed-out days — alongside about 28 sunny days and 12 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Alter do Chão at 9.9/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
October in Alter do Chão — the year's strongest window
Best window · 9.7/10October averages 32°C (90°F) — genuinely punishing heat. Anything outdoors needs to happen before 10am.
Expect 39 mm of rain — occasional showers rather than washed-out days — alongside about 26 sunny days and 12.1 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Alter do Chão at 9.7/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
November in Alter do Chão — the year's strongest window
Best window · 8.8/10November averages 31°C (87°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 73 mm, so plan one flexible day in three; you still get about 21 sunny days and 12.1 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Alter do Chão at 8.8/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
December in Alter do Chão — reliably good (6th best month)
Good · 8.2/10December averages 29°C (85°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 90 mm, so plan one flexible day in three; you still get about 19 sunny days and 12.1 hours of daylight.
It scores 8.2/10 here, 6th of 12 months, against 9.9/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
If your dates are flexible, September is materially better in Alter do Chão — 1.7 points higher on the same scale.
