Brazil / Jau / 21 December

Weather in Jau on 21 December 2026

Preliminary outlook for 21 December 2026

A preliminary estimate based on the 2019–2025 archive: daytime around +31°C and nighttime around +19°C, average precipitation 0.2 mm, wind around 3 m/s, humidity around 73%.

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.

← 20 December
Nearby days
22 December →
+24°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +20°C Precipitation: 0 mm Wind: 3 — 5 m/s Humidity: 74%
MetricValue MetricValue
Day temperature (max.) +31°C Sun hours 8 h
UV index 6 Cloud cover (avg.) 47%
Pressure (avg.) 759 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +25°C Dew point (avg.) +19°C
Heat index (avg.) +25°C Wind chill (avg.) +24°C
Wind gusts (max.) 8 m/s Wind direction (avg.) 121° ↗ (NE)
Sunrise
05:28
Duration
13 h 30 min
Sunset
18:58
Moonrise
06:31
Moonset
20:32
Moon phase
Waxing Crescent
Illumination
6%
+24°C
Weather archive — for 2024 year
Patchy rain nearby
Weather archive — for 2024 year
Nighttime: +20°C Precipitation: 0.2 mm Wind: 2 — 3 m/s Humidity: 83%
MetricValue MetricValue
Day temperature (max.) +28°C Sun hours 5 h
UV index 6 Cloud cover (avg.) 73%
Pressure (avg.) 758 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +25°C Dew point (avg.) +21°C
Heat index (avg.) +25°C Wind chill (avg.) +24°C
Wind gusts (max.) 5 m/s Wind direction (avg.) 30° ↑ (N)
Sunrise
05:28
Duration
13 h 30 min
Sunset
18:58
Moonrise
23:49
Moonset
11:09
Moon phase
Waning Gibbous
Illumination
57%
+27°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +19°C Precipitation: 0 mm Wind: 5 — 7 m/s Humidity: 54%
MetricValue MetricValue
Day temperature (max.) +36°C Sun hours 11 h
UV index 7 Cloud cover (avg.) 16%
Pressure (avg.) 758 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +27°C Dew point (avg.) +16°C
Heat index (avg.) +28°C Wind chill (avg.) +27°C
Wind gusts (max.) 11 m/s Wind direction (avg.) 109° ↑ (NNE)
Sunrise
05:27
Duration
13 h 30 min
Sunset
18:57
Moonrise
14:01
Moonset
01:09
Moon phase
First Quarter
Illumination
59%
+21°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +17°C Precipitation: 0 mm Wind: 5 — 6 m/s Humidity: 72%
MetricValue MetricValue
Day temperature (max.) +27°C Sun hours 8 h
UV index 6 Cloud cover (avg.) 45%
Pressure (avg.) 758 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +22°C Dew point (avg.) +15°C
Heat index (avg.) +22°C Wind chill (avg.) +21°C
Wind gusts (max.) 11 m/s Wind direction (avg.) 136° ↘ (SE)
Sunrise
05:27
Duration
13 h 30 min
Sunset
18:57
Moonrise
03:27
Moonset
17:17
Moon phase
Waning Crescent
Illumination
4%
+25°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +18°C Precipitation: 0 mm Wind: 2 — 3 m/s Humidity: 64%
MetricValue MetricValue
Day temperature (max.) +32°C Sun hours 13 h
UV index 6 Cloud cover (avg.) 13%
Pressure (avg.) 757 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 10 km Sea temperature
Feels like (avg.) +25°C Dew point (avg.) +17°C
Heat index (avg.) +25°C Wind chill (avg.) +25°C
Wind gusts (max.) 9 m/s Wind direction (avg.) 75° ↑ (N)
Sunrise
05:28
Duration
13 h 30 min
Sunset
18:58
Moonrise
21:12
Moonset
07:15
Moon phase
Waxing Gibbous
Illumination
81%
+26°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +21°C Precipitation: 0.1 mm Wind: 2 — 3 m/s Humidity: 77%
MetricValue MetricValue
Day temperature (max.) +32°C Sun hours 11 h
UV index 6 Cloud cover (avg.) 49%
Pressure (avg.) 758 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 8 km Sea temperature
Feels like (avg.) +29°C Dew point (avg.) +21°C
Heat index (avg.) +29°C Wind chill (avg.) +27°C
Wind gusts (max.) 6 m/s Wind direction (avg.) 186° ↖ (NNW)
Sunrise
05:28
Duration
13 h 30 min
Sunset
18:58
Moonrise
11:56
Moonset
No moonset
Moon phase
First Quarter
Illumination
41%
+24°C
Weather archive — for 2019 year
Patchy rain nearby
Weather archive — for 2019 year
Nighttime: +21°C Precipitation: 1.3 mm Wind: 3 — 4 m/s Humidity: 84%
MetricValue MetricValue
Day temperature (max.) +28°C Sun hours 2 h
UV index 6 Cloud cover (avg.) 66%
Pressure (avg.) 758 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 9 km Sea temperature
Feels like (avg.) +25°C Dew point (avg.) +21°C
Heat index (avg.) +25°C Wind chill (avg.) +24°C
Wind gusts (max.) 10 m/s Wind direction (avg.) 179° ↖ (NNW)
Sunrise
05:27
Duration
13 h 30 min
Sunset
18:57
Moonrise
01:49
Moonset
14:35
Moon phase
Last Quarter
Illumination
28%

Weather in Jau on 21 December in previous years

Year Day Nighttime Average Sun UV Humidity Wind
2025 +31°C +20°C +24°C 8 h 6 74% 3 — 5 m/s
2024 +28°C +20°C +24°C 5 h 6 83% 2 — 3 m/s
2023 +36°C +19°C +27°C 11 h 7 54% 5 — 7 m/s
2022 +27°C +17°C +21°C 8 h 6 72% 5 — 6 m/s
2021 +32°C +18°C +25°C 13 h 6 64% 2 — 3 m/s
2020 +32°C +21°C +26°C 11 h 6 77% 2 — 3 m/s
2019 +28°C +21°C +24°C 2 h 6 84% 3 — 4 m/s