Brazil / Gravatai / 18 August

Weather in Gravatai on 18 August 2026

Preliminary outlook for 18 August 2026

A preliminary estimate based on the 2019–2025 archive: daytime around +23°C and nighttime around +13°C, average precipitation 0.4 mm, wind around 2 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.

← 17 August
Nearby days
19 August →
+16°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +12°C Precipitation: 0 mm Wind: 2 — 3 m/s Humidity: 82%
MetricValue MetricValue
Day temperature (max.) +23°C Sun hours 12 h
UV index 5 Cloud cover (avg.) 21%
Pressure (avg.) 766 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 8 km Sea temperature
Feels like (avg.) +17°C Dew point (avg.) +13°C
Heat index (avg.) +17°C Wind chill (avg.) +17°C
Wind gusts (max.) 4 m/s Wind direction (avg.) 99° → (E)
Sunrise
06:54
Duration
11 h 08 min
Sunset
18:02
Moonrise
03:16
Moonset
13:13
Moon phase
Last Quarter
Illumination
29%
+19°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +16°C Precipitation: 0 mm Wind: 2 — 3 m/s Humidity: 87%
MetricValue MetricValue
Day temperature (max.) +24°C Sun hours 9 h
UV index 4 Cloud cover (avg.) 49%
Pressure (avg.) 761 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 6 km Sea temperature
Feels like (avg.) +19°C Dew point (avg.) +17°C
Heat index (avg.) +19°C Wind chill (avg.) +19°C
Wind gusts (max.) 5 m/s Wind direction (avg.) 98° → (ESE)
Sunrise
06:54
Duration
11 h 08 min
Sunset
18:02
Moonrise
16:51
Moonset
06:12
Moon phase
Waxing Gibbous
Illumination
93%
+19°C
Weather archive — for 2023 year
Cloudy
Weather archive — for 2023 year
Nighttime: +16°C Precipitation: 0 mm Wind: 2 — 4 m/s Humidity: 84%
MetricValue MetricValue
Day temperature (max.) +24°C Sun hours 9 h
UV index 5 Cloud cover (avg.) 46%
Pressure (avg.) 755 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +20°C Dew point (avg.) +17°C
Heat index (avg.) +21°C Wind chill (avg.) +20°C
Wind gusts (max.) 8 m/s Wind direction (avg.) 120° → (E)
Sunrise
06:55
Duration
11 h 06 min
Sunset
18:01
Moonrise
08:16
Moonset
20:04
Moon phase
Waxing Crescent
Illumination
9%
+13°C
Weather archive — for 2022 year
Patchy rain nearby
Weather archive — for 2022 year
Nighttime: +8°C Precipitation: 1.3 mm Wind: 3 — 6 m/s Humidity: 89%
MetricValue MetricValue
Day temperature (max.) +18°C Sun hours 2 h
UV index 3 Cloud cover (avg.) 85%
Pressure (avg.) 760 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 9 km Sea temperature
Feels like (avg.) +13°C Dew point (avg.) +12°C
Heat index (avg.) +14°C Wind chill (avg.) +13°C
Wind gusts (max.) 11 m/s Wind direction (avg.) 207° ↓ (SSW)
Sunrise
06:54
Duration
11 h 07 min
Sunset
18:01
Moonrise
No moonrise
Moonset
10:58
Moon phase
Waning Gibbous
Illumination
54%
+21°C
Weather archive — for 2021 year
Cloudy
Weather archive — for 2021 year
Nighttime: +17°C Precipitation: 0 mm Wind: 3 — 4 m/s Humidity: 81%
MetricValue MetricValue
Day temperature (max.) +26°C Sun hours 7 h
UV index 6 Cloud cover (avg.) 56%
Pressure (avg.) 761 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +21°C Dew point (avg.) +17°C
Heat index (avg.) +21°C Wind chill (avg.) +20°C
Wind gusts (max.) 8 m/s Wind direction (avg.) 147° ↓ (S)
Sunrise
06:54
Duration
11 h 08 min
Sunset
18:02
Moonrise
14:00
Moonset
03:41
Moon phase
Waxing Gibbous
Illumination
69%
+17°C
Weather archive — for 2020 year
Cloudy
Weather archive — for 2020 year
Nighttime: +13°C Precipitation: 0.9 mm Wind: 2 — 3 m/s Humidity: 84%
MetricValue MetricValue
Day temperature (max.) +23°C Sun hours 3 h
UV index 5 Cloud cover (avg.) 66%
Pressure (avg.) 758 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +17°C Dew point (avg.) +14°C
Heat index (avg.) +17°C Wind chill (avg.) +17°C
Wind gusts (max.) 4 m/s Wind direction (avg.) 96° → (E)
Sunrise
06:54
Duration
11 h 08 min
Sunset
18:02
Moonrise
06:43
Moonset
17:37
Moon phase
New Moon
Illumination
0%
+15°C
Weather archive — for 2019 year
Patchy rain nearby
Weather archive — for 2019 year
Nighttime: +10°C Precipitation: 0.3 mm Wind: 3 — 4 m/s Humidity: 71%
MetricValue MetricValue
Day temperature (max.) +21°C Sun hours 8 h
UV index 3 Cloud cover (avg.) 51%
Pressure (avg.) 761 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +15°C Dew point (avg.) +11°C
Heat index (avg.) +16°C Wind chill (avg.) +15°C
Wind gusts (max.) 8 m/s Wind direction (avg.) 215° ↓ (S)
Sunrise
06:55
Duration
11 h 06 min
Sunset
18:01
Moonrise
20:50
Moonset
08:49
Moon phase
Waning Gibbous
Illumination
78%

Weather in Gravatai on 18 August in previous years

Year Day Nighttime Average Sun UV Humidity Wind
2025 +23°C +12°C +16°C 12 h 5 82% 2 — 3 m/s
2024 +24°C +16°C +19°C 9 h 4 87% 2 — 3 m/s
2023 +24°C +16°C +19°C 9 h 5 84% 2 — 4 m/s
2022 +18°C +8°C +13°C 2 h 3 89% 3 — 6 m/s
2021 +26°C +17°C +21°C 7 h 6 81% 3 — 4 m/s
2020 +23°C +13°C +17°C 3 h 5 84% 2 — 3 m/s
2019 +21°C +10°C +15°C 8 h 3 71% 3 — 4 m/s