Weather in Ha Long on 4 August 2026
Preliminary outlook for 4 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +31°C and nighttime around +26°C, average precipitation 2 mm, wind around 2 m/s, humidity around 84%.
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.
+29°C
Weather archive — latest year: 2025
Partly Cloudy
Weather archive — latest year: 2025
Nighttime: +27°C
Precipitation: 0 mm
Wind: 2 — 2 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +34°C | Sun hours | 13 h |
| UV index | 6 | Cloud cover (avg.) | 35% |
| Pressure (avg.) | 750 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +36°C | Dew point (avg.) | +26°C |
| Heat index (avg.) | +36°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 131° ↓ (SSW) |
Sunrise
05:27
Duration
13 h 03 min
Sunset
18:30
Moonrise
14:29
Moonset
00:29
Moon phase
Waxing Gibbous
Illumination
69%
+28°C
Weather archive — for 2024 year
Patchy rain nearby
Weather archive — for 2024 year
Nighttime: +26°C
Precipitation: 0.5 mm
Wind: 2 — 4 m/s
Humidity: 81%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 8 h |
| UV index | 7 | Cloud cover (avg.) | 40% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 132° ↘ (SSE) |
Sunrise
05:27
Duration
13 h 02 min
Sunset
18:29
Moonrise
05:00
Moonset
18:38
Moon phase
New Moon
Illumination
0%
+27°C
Weather archive — for 2023 year
Moderate rain at times
Weather archive — for 2023 year
Nighttime: +25°C
Precipitation: 2.4 mm
Wind: 1 — 2 m/s
Humidity: 89%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 8 h |
| UV index | 6 | Cloud cover (avg.) | 76% |
| Pressure (avg.) | 752 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +25°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 128° ↓ (SSW) |
Sunrise
05:27
Duration
13 h 03 min
Sunset
18:30
Moonrise
20:45
Moonset
07:52
Moon phase
Waning Gibbous
Illumination
78%
+29°C
Weather archive — for 2022 year
Overcast
Weather archive — for 2022 year
Nighttime: +26°C
Precipitation: 0.3 mm
Wind: 1 — 2 m/s
Humidity: 80%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 3 h |
| UV index | 7 | Cloud cover (avg.) | 70% |
| Pressure (avg.) | 753 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +34°C | Dew point (avg.) | +25°C |
| Heat index (avg.) | +34°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 123° ↘ (SSE) |
Sunrise
05:27
Duration
13 h 03 min
Sunset
18:30
Moonrise
10:53
Moonset
22:44
Moon phase
First Quarter
Illumination
44%
+30°C
Weather archive — for 2021 year
Partly Cloudy
Weather archive — for 2021 year
Nighttime: +26°C
Precipitation: 0.7 mm
Wind: 1 — 2 m/s
Humidity: 75%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +35°C | Sun hours | 11 h |
| UV index | 7 | Cloud cover (avg.) | 51% |
| Pressure (avg.) | 750 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +36°C | Dew point (avg.) | +25°C |
| Heat index (avg.) | +36°C | Wind chill (avg.) | +30°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 270° ↙ (WSW) |
Sunrise
05:27
Duration
13 h 03 min
Sunset
18:30
Moonrise
01:26
Moonset
15:11
Moon phase
Waning Crescent
Illumination
18%
+27°C
Weather archive — for 2020 year
Moderate or heavy rain shower
Weather archive — for 2020 year
Nighttime: +24°C
Precipitation: 5.5 mm
Wind: 1 — 2 m/s
Humidity: 89%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 74% |
| Pressure (avg.) | 750 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +25°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 79° → (ESE) |
Sunrise
05:27
Duration
13 h 02 min
Sunset
18:29
Moonrise
19:13
Moonset
05:44
Moon phase
Full Moon
Illumination
100%
+26°C
Weather archive — for 2019 year
Heavy rain at times
Weather archive — for 2019 year
Nighttime: +25°C
Precipitation: 4.3 mm
Wind: 3 — 4 m/s
Humidity: 93%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 66% |
| Pressure (avg.) | 750 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 7 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +25°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 61° ↗ (ENE) |
Sunrise
05:27
Duration
13 h 03 min
Sunset
18:30
Moonrise
08:32
Moonset
21:17
Moon phase
Waxing Crescent
Illumination
20%
Weather in Ha Long on 4 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+34°C
|
+27°C
|
+29°C | 13 h | 6 | 82% | 2 — 2 m/s |
| 2024 |
+30°C
|
+26°C
|
+28°C | 8 h | 7 | 81% | 2 — 4 m/s |
| 2023 |
+29°C
|
+25°C
|
+27°C | 8 h | 6 | 89% | 1 — 2 m/s |
| 2022 |
+33°C
|
+26°C
|
+29°C | 3 h | 7 | 80% | 1 — 2 m/s |
| 2021 |
+35°C
|
+26°C
|
+30°C | 11 h | 7 | 75% | 1 — 2 m/s |
| 2020 |
+29°C
|
+24°C
|
+27°C | 7 h | 6 | 89% | 1 — 2 m/s |
| 2019 |
+29°C
|
+25°C
|
+26°C | 7 h | 6 | 93% | 3 — 4 m/s |