Weather in Haiphong on 21 August 2026
Preliminary outlook for 21 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +30°C and nighttime around +26°C, average precipitation 2.6 mm, wind around 3 m/s, humidity around 86%.
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.
+28°C
Weather archive — latest year: 2025
Light rain shower
Weather archive — latest year: 2025
Nighttime: +27°C
Precipitation: 7.2 mm
Wind: 4 — 4 m/s
Humidity: 87%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 8 h |
| UV index | 6 | Cloud cover (avg.) | 71% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | +25°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 153° ↘ (SSE) |
Sunrise
05:34
Duration
12 h 44 min
Sunset
18:18
Moonrise
03:22
Moonset
17:06
Moon phase
Waning Crescent
Illumination
8%
+28°C
Weather archive — for 2024 year
Overcast
Weather archive — for 2024 year
Nighttime: +27°C
Precipitation: 0.1 mm
Wind: 2 — 2 m/s
Humidity: 89%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 79% |
| Pressure (avg.) | 754 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +35°C | Dew point (avg.) | +26°C |
| Heat index (avg.) | +35°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 132° ↘ (SE) |
Sunrise
05:34
Duration
12 h 44 min
Sunset
18:18
Moonrise
19:36
Moonset
06:52
Moon phase
Waxing Gibbous
Illumination
85%
+29°C
Weather archive — for 2023 year
Cloudy
Weather archive — for 2023 year
Nighttime: +26°C
Precipitation: 0.1 mm
Wind: 3 — 3 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 5 h |
| UV index | 6 | Cloud cover (avg.) | 62% |
| Pressure (avg.) | 754 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.) | 5 m/s | Wind direction (avg.) | 144° ↓ (S) |
Sunrise
05:34
Duration
12 h 45 min
Sunset
18:19
Moonrise
09:20
Moonset
21:13
Moon phase
Waxing Crescent
Illumination
30%
+27°C
Weather archive — for 2022 year
Patchy rain nearby
Weather archive — for 2022 year
Nighttime: +25°C
Precipitation: 5.8 mm
Wind: 3 — 4 m/s
Humidity: 90%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 9 h |
| UV index | 6 | Cloud cover (avg.) | 77% |
| Pressure (avg.) | 752 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 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.) | 8 m/s | Wind direction (avg.) | 105° → (ESE) |
Sunrise
05:34
Duration
12 h 45 min
Sunset
18:19
Moonrise
00:09
Moonset
13:59
Moon phase
Last Quarter
Illumination
32%
+29°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +27°C
Precipitation: 0.1 mm
Wind: 4 — 4 m/s
Humidity: 83%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 12 h |
| UV index | 6 | Cloud cover (avg.) | 63% |
| Pressure (avg.) | 755 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.) | 7 m/s | Wind direction (avg.) | 151° ↘ (SSE) |
Sunrise
05:34
Duration
12 h 44 min
Sunset
18:18
Moonrise
17:44
Moonset
04:01
Moon phase
Waxing Gibbous
Illumination
91%
+27°C
Weather archive — for 2020 year
Patchy rain nearby
Weather archive — for 2020 year
Nighttime: +26°C
Precipitation: 1.8 mm
Wind: 2 — 3 m/s
Humidity: 89%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 5 h |
| UV index | 6 | Cloud cover (avg.) | 82% |
| Pressure (avg.) | 756 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.) | 6 m/s | Wind direction (avg.) | 88° ↗ (ENE) |
Sunrise
05:34
Duration
12 h 44 min
Sunset
18:18
Moonrise
07:33
Moonset
20:14
Moon phase
Waxing Crescent
Illumination
13%
+28°C
Weather archive — for 2019 year
Moderate rain at times
Weather archive — for 2019 year
Nighttime: +26°C
Precipitation: 3.2 mm
Wind: 2 — 4 m/s
Humidity: 81%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 55% |
| Pressure (avg.) | 753 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 7 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | +25°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 88° → (E) |
Sunrise
05:34
Duration
12 h 45 min
Sunset
18:19
Moonrise
22:00
Moonset
10:02
Moon phase
Waning Gibbous
Illumination
57%
Weather in Haiphong on 21 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+30°C
|
+27°C
|
+28°C | 8 h | 6 | 87% | 4 — 4 m/s |
| 2024 |
+29°C
|
+27°C
|
+28°C | 7 h | 6 | 89% | 2 — 2 m/s |
| 2023 |
+32°C
|
+26°C
|
+29°C | 5 h | 6 | 82% | 3 — 3 m/s |
| 2022 |
+28°C
|
+25°C
|
+27°C | 9 h | 6 | 90% | 3 — 4 m/s |
| 2021 |
+31°C
|
+27°C
|
+29°C | 12 h | 6 | 83% | 4 — 4 m/s |
| 2020 |
+29°C
|
+26°C
|
+27°C | 5 h | 6 | 89% | 2 — 3 m/s |
| 2019 |
+30°C
|
+26°C
|
+28°C | 7 h | 6 | 81% | 2 — 4 m/s |