Weather in Rio on 12 August 2026
Preliminary outlook for 12 August 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +32°C and nighttime around +24°C, average precipitation 0 mm, wind around 4 m/s, humidity around 50%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+28°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +24°C
Precipitation: 0 mm
Wind: 6 — 7 m/s
Humidity: 40%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 70° ↗ (ENE) |
Sunrise
06:45
Duration
13 h 45 min
Sunset
20:30
Moonrise
22:06
Moonset
09:45
Moon phase
Waning Gibbous
Illumination
73%
+29°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +25°C
Sea temperature: +27°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +34°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 1% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +27°C |
| Feels like (avg.) | +31°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 71° ↗ (NE) |
Sunrise
06:45
Duration
13 h 45 min
Sunset
20:30
Moonrise
14:41
Moonset
Does not set today
Moon phase
First Quarter
Illumination
50%
+26°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +22°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 50%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 11% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +27°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +27°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 66° ↗ (ENE) |
Sunrise
06:44
Duration
13 h 47 min
Sunset
20:31
Moonrise
02:36
Moonset
18:29
Moon phase
Waning Crescent
Illumination
20%
+27°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +23°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 55%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 9 h |
| UV index | 7 | Cloud cover (avg.) | 27% |
| Pressure (avg.) | 759 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +17°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 142° ↑ (N) |
Sunrise
06:44
Duration
13 h 46 min
Sunset
20:30
Moonrise
21:06
Moonset
06:24
Moon phase
Full Moon
Illumination
100%
+29°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +25°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 50%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 18% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 89° ↗ (ENE) |
Sunrise
06:45
Duration
13 h 45 min
Sunset
20:30
Moonrise
10:25
Moonset
22:52
Moon phase
Waxing Crescent
Illumination
25%
+27°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +24°C
Precipitation: 0 mm
Wind: 1 — 3 m/s
Humidity: 61%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 14 h |
| UV index | 7 | Cloud cover (avg.) | 10% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +29°C | Dew point (avg.) | +19°C |
| Heat index (avg.) | +29°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 201° ← (W) |
Sunrise
06:45
Duration
13 h 45 min
Sunset
20:30
Moonrise
00:55
Moonset
15:19
Moon phase
Last Quarter
Illumination
38%
Weather in Rio on 12 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+33°C
|
+24°C
|
+28°C | 14 h | 7 | 40% | 6 — 7 m/s |
| 2024 |
+34°C
|
+25°C
|
+29°C | 14 h | 7 | 42% | 4 — 5 m/s |
| 2023 |
+30°C
|
+22°C
|
+26°C | 14 h | 7 | 50% | 3 — 4 m/s |
| 2022 |
+32°C
|
+23°C
|
+27°C | 9 h | 7 | 55% | 3 — 4 m/s |
| 2021 |
+33°C
|
+25°C
|
+29°C | 14 h | 7 | 50% | 4 — 6 m/s |
| 2020 |
+29°C
|
+24°C
|
+27°C | 14 h | 7 | 61% | 1 — 3 m/s |