Rio Branco
Elevation 143 m9.98° S, 67.81° W
When to go?
Mean 27 °C, 27 rain days in the month (277 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 9 days in 10
Mean 27 °C, 25 rain days in the month (274 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 9 days in 10
Mean 27 °C, 26 rain days in the month (276 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 8 days in 10
Mean 27 °C, 19 rain days in the month (173 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 6 days in 10
Mean 26 °C, 12 rain days in the month (82 mm).
Against
- Hothighs of 30 °C
Mean 25 °C, 5 rain days in the month (29 mm).
Against
- Hothighs of 30 °C
Mean 25 °C, 3 rain days in the month (20 mm).
Against
- Hothighs of 31 °C
Mean 26 °C, 5 rain days in the month (34 mm).
Against
- Hothighs of 32 °C
Mean 27 °C, 9 rain days in the month (71 mm).
Against
- Hothighs of 33 °C
Mean 27 °C, 16 rain days in the month (138 mm).
Against
- Hothighs of 33 °C
- Often rainyrain on 5 days in 10
Mean 27 °C, 20 rain days in the month (211 mm).
Against
- Hothighs of 32 °C
- Often rainyrain on 7 days in 10
Mean 27 °C, 24 rain days in the month (263 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 8 days in 10
No ideal month: the best month is July, the least hot. Avoid August–June (hot, at times often rainy).
What is the climate like?
Temperature and rain
Monthly min and max temperature (°C)
Monthly min and max temperature (°C)
How much it rains
Rain days and how much water
Rain days and how much water
Bars: length = rain days, thickness = mm on a rain day, area = the month's rain. 3 mm a day7 mm a day15 mm a day
Colour = the month's rain: 103060100160250400mm
Daylight hours
Daylight and sky: sunrise, sunset and cloud cover
daylight under a clear sky (average share)daylight under cloud
daylight under a clear sky (average share)daylight under cloud
Times on the 15th of each month, in local time: daylight saving where and when it applies, standard time in the other months.
Effect of climate change
Today's climate (1996–2025) compared with 1961–1990:
In short
Year by year
Temperature of each year
Against 1961–1990 the mean temperature of today (1996–2025) has changed by +0.4 °C; in the last ten years by +0.7 °C. Warmest year: 1961 (+1.6 °C), coldest: 1971 (−0.8 °C).
July and September warmed the most (+0.8 and +0.8 °C), December the least (+0.2 °C).
Warming stripes: after an idea by Ed Hawkins (University of Reading), showyourstripes.info, CC BY 4.0.
Rain of each year (% against 1961–1990)
more rain than in 1961–1990less rain
Rain in a year: no clear trend, dry and wet years alternate as before.