Weather in Hanoi on 18 December 2026
Preliminary outlook for 18 December 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +21°C and nighttime around +16°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
Partly Cloudy
Weather archive — latest year: 2025
Nighttime: +18°C
Precipitation: 0.2 mm
Wind: 2 — 4 m/s
Humidity: 72%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +26°C | Sun hours | 7 h |
| UV index | 5 | Cloud cover (avg.) | 62% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +22°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +22°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 290° ↑ (N) |
Sunrise
06:27
Duration
10 h 52 min
Sunset
17:19
Moonrise
04:50
Moonset
15:44
Moon phase
Waning Crescent
Illumination
1%
+18°C
Weather archive — for 2024 year
Partly Cloudy
Weather archive — for 2024 year
Nighttime: +17°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 49%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 11 h |
| UV index | 4 | Cloud cover (avg.) | 55% |
| Pressure (avg.) | 766 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.) | 6 m/s | Wind direction (avg.) | 196° ↑ (N) |
Sunrise
06:27
Duration
10 h 52 min
Sunset
17:19
Moonrise
20:14
Moonset
09:06
Moon phase
Waning Gibbous
Illumination
79%
+16°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 1 — 3 m/s
Humidity: 66%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 1 h |
| UV index | 4 | Cloud cover (avg.) | 100% |
| Pressure (avg.) | 766 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +16°C | Dew point (avg.) | +9°C |
| Heat index (avg.) | +16°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 47° ↗ (ENE) |
Sunrise
06:27
Duration
10 h 52 min
Sunset
17:19
Moonrise
11:04
Moonset
22:50
Moon phase
Waxing Crescent
Illumination
37%
+15°C
Weather archive — for 2022 year
Partly Cloudy
Weather archive — for 2022 year
Nighttime: +12°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 27%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 11 h |
| UV index | 4 | Cloud cover (avg.) | 52% |
| 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.) | −2°C |
| Heat index (avg.) | +15°C | Wind chill (avg.) | +15°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 52° ↑ (NNE) |
Sunrise
06:27
Duration
10 h 52 min
Sunset
17:19
Moonrise
01:02
Moonset
13:11
Moon phase
Waning Crescent
Illumination
26%
+17°C
Weather archive — for 2021 year
Overcast
Weather archive — for 2021 year
Nighttime: +15°C
Precipitation: 0 mm
Wind: 4 — 5 m/s
Humidity: 62%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 1 h |
| UV index | 4 | Cloud cover (avg.) | 93% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +9°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 19° ↑ (NNE) |
Sunrise
06:27
Duration
10 h 52 min
Sunset
17:19
Moonrise
16:36
Moonset
05:32
Moon phase
Waxing Gibbous
Illumination
97%
+13°C
Weather archive — for 2020 year
Cloudy
Weather archive — for 2020 year
Nighttime: +12°C
Precipitation: 0 mm
Wind: 3 — 4 m/s
Humidity: 53%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +15°C | Sun hours | 5 h |
| UV index | 3 | Cloud cover (avg.) | 82% |
| 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.) | +4°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +13°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 17° ↑ (N) |
Sunrise
06:27
Duration
10 h 52 min
Sunset
17:19
Moonrise
09:44
Moonset
21:00
Moon phase
Waxing Crescent
Illumination
20%
+24°C
Weather archive — for 2019 year
Patchy rain nearby
Weather archive — for 2019 year
Nighttime: +21°C
Precipitation: 0.4 mm
Wind: 4 — 5 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +27°C | Sun hours | 3 h |
| UV index | 5 | Cloud cover (avg.) | 66% |
| Pressure (avg.) | 763 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +24°C | Dew point (avg.) | +20°C |
| Heat index (avg.) | +26°C | Wind chill (avg.) | +23°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 149° ↘ (SSE) |
Sunrise
06:27
Duration
10 h 52 min
Sunset
17:19
Moonrise
23:26
Moonset
11:31
Moon phase
Last Quarter
Illumination
50%
Weather in Hanoi on 18 December in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+26°C
|
+18°C
|
+21°C | 7 h | 5 | 72% | 2 — 4 m/s |
| 2024 |
+21°C
|
+17°C
|
+18°C | 11 h | 4 | 49% | 2 — 3 m/s |
| 2023 |
+20°C
|
+14°C
|
+16°C | 1 h | 4 | 66% | 1 — 3 m/s |
| 2022 |
+19°C
|
+12°C
|
+15°C | 11 h | 4 | 27% | 4 — 6 m/s |
| 2021 |
+20°C
|
+15°C
|
+17°C | 1 h | 4 | 62% | 4 — 5 m/s |
| 2020 |
+15°C
|
+12°C
|
+13°C | 5 h | 3 | 53% | 3 — 4 m/s |
| 2019 |
+27°C
|
+21°C
|
+24°C | 3 h | 5 | 82% | 4 — 5 m/s |