Weather in Rio on 16 December 2026
Preliminary outlook for 16 December 2026
A preliminary estimate based on the 2020–2025 archive: daytime around +15°C and nighttime around +10°C, average precipitation 0 mm, wind around 4 m/s, humidity around 68%.
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: 3 — 4 m/s
Humidity: 58%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +15°C | Sun hours | 9 h |
| UV index | 4 | Cloud cover (avg.) | 2% |
| Pressure (avg.) | 770 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +10°C | Dew point (avg.) | +3°C |
| Heat index (avg.) | +11°C | Wind chill (avg.) | +10°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 64° ↗ (NE) |
Sunrise
07:43
Duration
9 h 30 min
Sunset
17:13
Moonrise
04:42
Moonset
14:37
Moon phase
Waning Crescent
Illumination
16%
+13°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +11°C
Sea temperature: +17°C
Precipitation: 0 mm
Wind: 5 — 7 m/s
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +14°C | Sun hours | 10 h |
| UV index | 3 | Cloud cover (avg.) | 50% |
| Pressure (avg.) | 770 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | +17°C |
| Feels like (avg.) | +12°C | Dew point (avg.) | +7°C |
| Heat index (avg.) | +13°C | Wind chill (avg.) | +12°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 64° ↗ (ENE) |
Sunrise
07:43
Duration
9 h 30 min
Sunset
17:13
Moonrise
17:58
Moonset
08:53
Moon phase
Full Moon
Illumination
100%
+10°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +7°C
Precipitation: 0.1 mm
Wind: 7 — 10 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +13°C | Sun hours | 4 h |
| UV index | 3 | Cloud cover (avg.) | 78% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +9°C | Dew point (avg.) | +7°C |
| Heat index (avg.) | +12°C | Wind chill (avg.) | +9°C |
| Wind gusts (max.) | 18 m/s | Wind direction (avg.) | 72° ↗ (ENE) |
Sunrise
07:43
Duration
9 h 30 min
Sunset
17:13
Moonrise
10:51
Moonset
20:34
Moon phase
Waxing Crescent
Illumination
22%
+18°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 1 — 1 m/s
Humidity: 74%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 10 h |
| UV index | 5 | Cloud cover (avg.) | 7% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +14°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 72° ↑ (N) |
Sunrise
07:43
Duration
9 h 30 min
Sunset
17:13
Moonrise
00:16
Moonset
13:06
Moon phase
Last Quarter
Illumination
40%
+9°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +7°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 65%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +12°C | Sun hours | 10 h |
| UV index | 3 | Cloud cover (avg.) | 15% |
| Pressure (avg.) | 768 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +8°C | Dew point (avg.) | +4°C |
| Heat index (avg.) | +10°C | Wind chill (avg.) | +8°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 75° ↗ (ENE) |
Sunrise
07:43
Duration
9 h 30 min
Sunset
17:13
Moonrise
15:33
Moonset
05:17
Moon phase
Waxing Gibbous
Illumination
82%
+13°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +11°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +16°C | Sun hours | 10 h |
| UV index | 4 | Cloud cover (avg.) | 5% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +13°C | Dew point (avg.) | +7°C |
| Heat index (avg.) | +13°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 106° ↗ (NE) |
Sunrise
07:43
Duration
9 h 30 min
Sunset
17:13
Moonrise
09:21
Moonset
18:53
Moon phase
Waxing Crescent
Illumination
5%
Weather in Rio on 16 December in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+15°C
|
+9°C
|
+11°C | 9 h | 4 | 58% | 3 — 4 m/s |
| 2024 |
+14°C
|
+11°C
|
+13°C | 10 h | 3 | 66% | 5 — 7 m/s |
| 2023 |
+13°C
|
+7°C
|
+10°C | 4 h | 3 | 79% | 7 — 10 m/s |
| 2022 |
+21°C
|
+15°C
|
+18°C | 10 h | 5 | 74% | 1 — 1 m/s |
| 2021 |
+12°C
|
+7°C
|
+9°C | 10 h | 3 | 65% | 4 — 5 m/s |
| 2020 |
+16°C
|
+11°C
|
+13°C | 10 h | 4 | 66% | 3 — 4 m/s |