Rio Branco weather in July
In July, Rio Branco has daytime highs averaging 30 °C, nights around 20 °C, with 4.0 wet days. Figures are 1991–2020 climate normals.
- 30.4°C Average high
- 20.4°C Average low
- 4.0days Wet days
- 23mm Rainfall
- 12h Daylight
Daily temperatures through July
How July develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 July | 29.9 °C | 20.5 °C | 15 % |
| 11–20 July | 30.1 °C | 20.2 °C | 14 % |
| 21–31 July | 31.0 °C | 20.3 °C | 10 % |
- Average highs rise from 29.9 °C early in July to 31.0 °C by the end of it.
- Rain is most likely over days 1–10 of July (15 % of days) and least likely over days 21–31 (10 %).
What to expect
| Measure | Typical July | Share of the month |
|---|---|---|
| Days above 25 °C | 30 of 31 | 96 % |
| Days above 30 °C | 20 of 31 | 66 % |
| Days below 0 °C | 0 of 31 | 0 % |
| Days with more than 1 mm rain | 4.0 of 31 | 13 % |
Conditions in July
| Measure | Average |
|---|---|
| Mean temperature | 25 °C |
| Record high (1991–2020) | 36 °C |
| Record low (1991–2020) | 12 °C |
| Relative humidity | 75 % |
| Wind speed | 9.2 km/h |
| Cloud cover | 37 % |
Where Rio Branco ranks in July
| Ranking | Position | Value |
|---|---|---|
| The warmest places in South America in July | 39thof 50 | 30 °C |
July compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| May | 28.5 °C | 81 mm | 71 % |
| June | 28.9 °C | 34 mm | 53 % |
| July | 30.4 °C | 23 mm | 37 % |
| August | 32.1 °C | 40 mm | 40 % |
| September | 32.4 °C | 77 mm | 58 % |
See all twelve months for Rio Branco
- July is the 4th warmest month here.
- It is the 1st driest month of the year.
- It ranks 1st for least cloud cover.
- Days last about 12 hours from sunrise to sunset.
- It rains on 4.0 of 31 days — 13 % of the month.
- Nights are about 10 °C cooler than the middle of the day.
- The hottest July day on record since 1991 reached 36 °C, 5.1 °C above the usual daytime high.
Nearby destinations in July
| Destination | Avg high | Wet days |
|---|---|---|
| Rio Branco | 30 °C | 4.0 |
| Porto Velho | 31 °C | 5 |
| Cusco | 15 °C | 3 |
QuestionsJuly in Rio Branco, answered
How warm is Rio Branco in July?
Daily highs average 30 °C and nights fall to about 20 °C, a spread of 10 °C between afternoon and dawn. That makes July the 10th warmest month of the year here.
Does it rain much in Rio Branco in July?
July averages 23 mm of rain, spread over about 4 of the 31 days — 13 % of the month. Cloud cover averages 37 % of the sky.
How long are the days in July?
Rio Branco averages 12 hours between sunrise and sunset in July. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.