Weather in Rio Grande Brazil on 15 August 2026
Preliminary outlook for 15 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +16°C and nighttime around +11°C, average precipitation 1.2 mm, wind around 4 m/s, humidity around 83%.
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.
+11°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +9°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +13°C | Sun hours | 11 h |
| UV index | 4 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 773 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +9°C | Dew point (avg.) | +6°C |
| Heat index (avg.) | +11°C | Wind chill (avg.) | +9°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 141° ↘ (SE) |
Sunrise
07:04
Duration
10 h 58 min
Sunset
18:02
Moonrise
No moonrise
Moonset
10:39
Moon phase
Last Quarter
Illumination
51%
+13°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +10°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 78%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +16°C | Sun hours | 11 h |
| UV index | 4 | Cloud cover (avg.) | 32% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +12°C | Dew point (avg.) | +9°C |
| Heat index (avg.) | +13°C | Wind chill (avg.) | +12°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 39° ↗ (NE) |
Sunrise
07:04
Duration
10 h 58 min
Sunset
18:02
Moonrise
13:28
Moonset
03:42
Moon phase
Waxing Gibbous
Illumination
71%
+14°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +12°C
Precipitation: 0 mm
Wind: 4 — 4 m/s
Humidity: 76%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 10 h |
| UV index | 4 | Cloud cover (avg.) | 7% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +14°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 107° ↑ (NNE) |
Sunrise
07:05
Duration
10 h 56 min
Sunset
18:01
Moonrise
06:55
Moonset
17:21
Moon phase
New Moon
Illumination
0%
+16°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +13°C
Precipitation: 8.3 mm
Wind: 5 — 7 m/s
Humidity: 95%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 3 h |
| UV index | 5 | Cloud cover (avg.) | 78% |
| Pressure (avg.) | 754 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 94° ↑ (N) |
Sunrise
07:05
Duration
10 h 56 min
Sunset
18:01
Moonrise
22:05
Moonset
09:29
Moon phase
Waning Gibbous
Illumination
76%
+14°C
Weather archive — for 2021 year
Partly Cloudy
Weather archive — for 2021 year
Nighttime: +13°C
Precipitation: 0 mm
Wind: 3 — 3 m/s
Humidity: 92%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +16°C | Sun hours | 11 h |
| UV index | 4 | Cloud cover (avg.) | 41% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 5 km | Sea temperature | — |
| Feels like (avg.) | +14°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 153° ↓ (S) |
Sunrise
07:04
Duration
10 h 58 min
Sunset
18:02
Moonrise
11:30
Moonset
00:27
Moon phase
First Quarter
Illumination
47%
+15°C
Weather archive — for 2020 year
Partly Cloudy
Weather archive — for 2020 year
Nighttime: +12°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 88%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 10 h |
| UV index | 3 | Cloud cover (avg.) | 79% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +13°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 10 m/s | Wind direction (avg.) | 194° ↙ (WSW) |
Sunrise
07:04
Duration
10 h 58 min
Sunset
18:02
Moonrise
04:15
Moonset
14:26
Moon phase
Waning Crescent
Illumination
16%
+12°C
Weather archive — for 2019 year
Partly Cloudy
Weather archive — for 2019 year
Nighttime: +9°C
Precipitation: 0 mm
Wind: 5 — 6 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +15°C | Sun hours | 7 h |
| UV index | 4 | Cloud cover (avg.) | 44% |
| Pressure (avg.) | 771 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +10°C | Dew point (avg.) | +9°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +10°C |
| Wind gusts (max.) | 13 m/s | Wind direction (avg.) | 45° ↗ (NE) |
Sunrise
07:05
Duration
10 h 56 min
Sunset
18:01
Moonrise
18:13
Moonset
07:17
Moon phase
Full Moon
Illumination
100%
Weather in Rio Grande Brazil on 15 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+13°C
|
+9°C
|
+11°C | 11 h | 4 | 72% | 4 — 5 m/s |
| 2024 |
+16°C
|
+10°C
|
+13°C | 11 h | 4 | 78% | 2 — 3 m/s |
| 2023 |
+18°C
|
+12°C
|
+14°C | 10 h | 4 | 76% | 4 — 4 m/s |
| 2022 |
+18°C
|
+13°C
|
+16°C | 3 h | 5 | 95% | 5 — 7 m/s |
| 2021 |
+16°C
|
+13°C
|
+14°C | 11 h | 4 | 92% | 3 — 3 m/s |
| 2020 |
+18°C
|
+12°C
|
+15°C | 10 h | 3 | 88% | 4 — 5 m/s |
| 2019 |
+15°C
|
+9°C
|
+12°C | 7 h | 4 | 82% | 5 — 6 m/s |