Weather in Hanoi on 20 December 2026
Preliminary outlook for 20 December 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +20°C and nighttime around +15°C, average precipitation 0.1 mm, wind around 3 m/s, humidity around 59%.
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.
+21°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +19°C
Precipitation: 0.2 mm
Wind: 2 — 3 m/s
Humidity: 83%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +24°C | Sun hours | 1 h |
| UV index | 6 | Cloud cover (avg.) | 69% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +22°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 166° ↖ (NNW) |
Sunrise
06:28
Duration
10 h 52 min
Sunset
17:20
Moonrise
06:38
Moonset
17:24
Moon phase
New Moon
Illumination
0%
+19°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 51%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 11 h |
| UV index | 5 | Cloud cover (avg.) | 40% |
| 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.) | +8°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 123° ↘ (SE) |
Sunrise
06:28
Duration
10 h 52 min
Sunset
17:20
Moonrise
22:06
Moonset
10:27
Moon phase
Waning Gibbous
Illumination
64%
+14°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +13°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 62%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +14°C | Sun hours | 2 h |
| UV index | 3 | Cloud cover (avg.) | 85% |
| Pressure (avg.) | 768 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +13°C | Dew point (avg.) | +6°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 100° ↑ (N) |
Sunrise
06:28
Duration
10 h 52 min
Sunset
17:20
Moonrise
12:19
Moonset
No moonset
Moon phase
First Quarter
Illumination
51%
+15°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +11°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 59%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 1 h |
| UV index | 5 | Cloud cover (avg.) | 70% |
| Pressure (avg.) | 763 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +14°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 71° ↗ (NE) |
Sunrise
06:28
Duration
10 h 52 min
Sunset
17:20
Moonrise
02:54
Moonset
14:27
Moon phase
Waning Crescent
Illumination
11%
+19°C
Weather archive — for 2021 year
Partly Cloudy
Weather archive — for 2021 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 47%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 10 h |
| UV index | 5 | Cloud cover (avg.) | 37% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +19°C | Dew point (avg.) | +8°C |
| Heat index (avg.) | +19°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 225° ↖ (NNW) |
Sunrise
06:28
Duration
10 h 52 min
Sunset
17:20
Moonrise
18:13
Moonset
07:17
Moon phase
Waxing Gibbous
Illumination
89%
+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: 41%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 11 h |
| UV index | 5 | Cloud cover (avg.) | 46% |
| Pressure (avg.) | 770 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +15°C | Dew point (avg.) | +3°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 19° ↑ (NNE) |
Sunrise
06:28
Duration
10 h 52 min
Sunset
17:20
Moonrise
11:09
Moonset
22:50
Moon phase
Waxing Crescent
Illumination
34%
+17°C
Weather archive — for 2019 year
Patchy rain nearby
Weather archive — for 2019 year
Nighttime: +16°C
Precipitation: 0.7 mm
Wind: 3 — 3 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +18°C | Sun hours | 1 h |
| UV index | 4 | Cloud cover (avg.) | 97% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 86° → (ESE) |
Sunrise
06:28
Duration
10 h 52 min
Sunset
17:20
Moonrise
00:24
Moonset
12:53
Moon phase
Last Quarter
Illumination
36%
Weather in Hanoi on 20 December in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+24°C
|
+19°C
|
+21°C | 1 h | 6 | 83% | 2 — 3 m/s |
| 2024 |
+23°C
|
+16°C
|
+19°C | 11 h | 5 | 51% | 3 — 5 m/s |
| 2023 |
+14°C
|
+13°C
|
+14°C | 2 h | 3 | 62% | 4 — 5 m/s |
| 2022 |
+20°C
|
+11°C
|
+15°C | 1 h | 5 | 59% | 2 — 3 m/s |
| 2021 |
+23°C
|
+16°C
|
+19°C | 10 h | 5 | 47% | 2 — 3 m/s |
| 2020 |
+18°C
|
+12°C
|
+15°C | 11 h | 5 | 41% | 4 — 5 m/s |
| 2019 |
+18°C
|
+16°C
|
+17°C | 1 h | 4 | 72% | 3 — 3 m/s |