Weather in Lang Son on 17 December 2026
Preliminary outlook for 17 December 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +17°C and nighttime around +11°C, average precipitation 0.1 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.
+17°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +15°C
Precipitation: 0.1 mm
Wind: 2 — 3 m/s
Humidity: 89%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +21°C | Sun hours | 4 h |
| UV index | 4 | Cloud cover (avg.) | 76% |
| Pressure (avg.) | 766 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 7 km | Sea temperature | — |
| Feels like (avg.) | +17°C | Dew point (avg.) | +15°C |
| Heat index (avg.) | +17°C | Wind chill (avg.) | +17°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 28° ↑ (NNE) |
Sunrise
06:25
Duration
10 h 49 min
Sunset
17:14
Moonrise
03:54
Moonset
14:55
Moon phase
Waning Crescent
Illumination
9%
+14°C
Weather archive — for 2024 year
Overcast
Weather archive — for 2024 year
Nighttime: +10°C
Precipitation: 0 mm
Wind: 1 — 2 m/s
Humidity: 49%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +19°C | Sun hours | 1 h |
| UV index | 4 | Cloud cover (avg.) | 83% |
| Pressure (avg.) | 765 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +14°C | Dew point (avg.) | +4°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +14°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 115° ↓ (S) |
Sunrise
06:25
Duration
10 h 49 min
Sunset
17:14
Moonrise
19:07
Moonset
08:13
Moon phase
Waxing Gibbous
Illumination
86%
+7°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +6°C
Precipitation: 0.1 mm
Wind: 4 — 6 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +8°C | Sun hours | 1 h |
| UV index | 2 | Cloud cover (avg.) | 100% |
| Pressure (avg.) | 769 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +6°C | Dew point (avg.) | +4°C |
| Heat index (avg.) | +8°C | Wind chill (avg.) | +6°C |
| Wind gusts (max.) | 9 m/s | Wind direction (avg.) | 32° ↑ (NNE) |
Sunrise
06:24
Duration
10 h 49 min
Sunset
17:13
Moonrise
10:19
Moonset
21:44
Moon phase
Waxing Crescent
Illumination
30%
+13°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +11°C
Precipitation: 0 mm
Wind: 7 — 9 m/s
Humidity: 49%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +15°C | Sun hours | 11 h |
| UV index | 4 | Cloud cover (avg.) | 46% |
| Pressure (avg.) | 770 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +11°C | Dew point (avg.) | +3°C |
| Heat index (avg.) | +14°C | Wind chill (avg.) | +11°C |
| Wind gusts (max.) | 17 m/s | Wind direction (avg.) | 23° ↑ (NNE) |
Sunrise
06:25
Duration
10 h 48 min
Sunset
17:13
Moonrise
00:07
Moonset
12:34
Moon phase
Last Quarter
Illumination
33%
+17°C
Weather archive — for 2021 year
Overcast
Weather archive — for 2021 year
Nighttime: +14°C
Precipitation: 0 mm
Wind: 4 — 6 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +20°C | Sun hours | 1 h |
| UV index | 4 | Cloud cover (avg.) | 80% |
| Pressure (avg.) | 765 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 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.) | 12 m/s | Wind direction (avg.) | 22° ↑ (NNE) |
Sunrise
06:25
Duration
10 h 48 min
Sunset
17:13
Moonrise
15:48
Moonset
04:36
Moon phase
Waxing Gibbous
Illumination
90%
+9°C
Weather archive — for 2020 year
Overcast
Weather archive — for 2020 year
Nighttime: +6°C
Precipitation: 0.1 mm
Wind: 3 — 4 m/s
Humidity: 67%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +11°C | Sun hours | 1 h |
| UV index | 2 | Cloud cover (avg.) | 100% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +7°C | Dew point (avg.) | +4°C |
| Heat index (avg.) | +9°C | Wind chill (avg.) | +7°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 33° ↑ (NNE) |
Sunrise
06:25
Duration
10 h 49 min
Sunset
17:14
Moonrise
08:50
Moonset
19:55
Moon phase
Waxing Crescent
Illumination
12%
+21°C
Weather archive — for 2019 year
Patchy rain nearby
Weather archive — for 2019 year
Nighttime: +17°C
Precipitation: 0.1 mm
Wind: 2 — 3 m/s
Humidity: 88%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +25°C | Sun hours | 9 h |
| UV index | 6 | Cloud cover (avg.) | 47% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +18°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 172° ↓ (SSW) |
Sunrise
06:24
Duration
10 h 49 min
Sunset
17:13
Moonrise
22:20
Moonset
10:43
Moon phase
Waning Gibbous
Illumination
58%
Weather in Lang Son on 17 December in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+21°C
|
+15°C
|
+17°C | 4 h | 4 | 89% | 2 — 3 m/s |
| 2024 |
+19°C
|
+10°C
|
+14°C | 1 h | 4 | 49% | 1 — 2 m/s |
| 2023 |
+8°C
|
+6°C
|
+7°C | 1 h | 2 | 82% | 4 — 6 m/s |
| 2022 |
+15°C
|
+11°C
|
+13°C | 11 h | 4 | 49% | 7 — 9 m/s |
| 2021 |
+20°C
|
+14°C
|
+17°C | 1 h | 4 | 86% | 4 — 6 m/s |
| 2020 |
+11°C
|
+6°C
|
+9°C | 1 h | 2 | 67% | 3 — 4 m/s |
| 2019 |
+25°C
|
+17°C
|
+21°C | 9 h | 6 | 88% | 2 — 3 m/s |