Weather in Haiphong on 18 September 2026
Preliminary outlook for 18 September 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +31°C and nighttime around +25°C, average precipitation 1.5 mm, wind around 3 m/s, humidity around 83%.
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.
+27°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +25°C
Precipitation: 2.4 mm
Wind: 2 — 3 m/s
Humidity: 87%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 74% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 65° → (E) |
Sunrise
05:41
Duration
12 h 13 min
Sunset
17:54
Moonrise
02:15
Moonset
15:47
Moon phase
Waning Crescent
Illumination
12%
+27°C
Weather archive — for 2024 year
Patchy rain nearby
Weather archive — for 2024 year
Nighttime: +25°C
Precipitation: 0.3 mm
Wind: 2 — 2 m/s
Humidity: 85%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +32°C | Sun hours | 9 h |
| UV index | 7 | Cloud cover (avg.) | 55% |
| Pressure (avg.) | 753 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +32°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +32°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 285° ↑ (N) |
Sunrise
05:41
Duration
12 h 12 min
Sunset
17:53
Moonrise
18:07
Moonset
05:34
Moon phase
Full Moon
Illumination
100%
+28°C
Weather archive — for 2023 year
Patchy rain nearby
Weather archive — for 2023 year
Nighttime: +25°C
Precipitation: 0.3 mm
Wind: 3 — 4 m/s
Humidity: 84%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 10 h |
| UV index | 6 | Cloud cover (avg.) | 48% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +32°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +32°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 104° ↘ (SE) |
Sunrise
05:41
Duration
12 h 13 min
Sunset
17:54
Moonrise
08:08
Moonset
19:49
Moon phase
Waxing Crescent
Illumination
20%
+28°C
Weather archive — for 2022 year
Patchy rain nearby
Weather archive — for 2022 year
Nighttime: +24°C
Precipitation: 0.1 mm
Wind: 2 — 3 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 8 h |
| UV index | 6 | Cloud cover (avg.) | 49% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +32°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +32°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 242° ↘ (SSE) |
Sunrise
05:41
Duration
12 h 13 min
Sunset
17:54
Moonrise
23:37
Moonset
12:44
Moon phase
Last Quarter
Illumination
37%
+28°C
Weather archive — for 2021 year
Cloudy
Weather archive — for 2021 year
Nighttime: +26°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 85%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 4 h |
| UV index | 7 | Cloud cover (avg.) | 63% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 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.) | 150° ↘ (SSE) |
Sunrise
05:41
Duration
12 h 13 min
Sunset
17:54
Moonrise
16:24
Moonset
02:53
Moon phase
Waxing Gibbous
Illumination
82%
+26°C
Weather archive — for 2020 year
Cloudy
Weather archive — for 2020 year
Nighttime: +23°C
Precipitation: 2.8 mm
Wind: 5 — 8 m/s
Humidity: 80%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 8 h |
| UV index | 6 | Cloud cover (avg.) | 78% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +23°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 12 m/s | Wind direction (avg.) | 17° ↑ (NNE) |
Sunrise
05:41
Duration
12 h 12 min
Sunset
17:53
Moonrise
06:17
Moonset
18:48
Moon phase
Waxing Crescent
Illumination
2%
+29°C
Weather archive — for 2019 year
Moderate or heavy rain shower
Weather archive — for 2019 year
Nighttime: +27°C
Precipitation: 4.3 mm
Wind: 3 — 4 m/s
Humidity: 77%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +33°C | Sun hours | 5 h |
| UV index | 6 | Cloud cover (avg.) | 68% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | +25°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 8 m/s | Wind direction (avg.) | 123° → (E) |
Sunrise
05:41
Duration
12 h 13 min
Sunset
17:54
Moonrise
20:37
Moonset
08:48
Moon phase
Waning Gibbous
Illumination
63%
Weather in Haiphong on 18 September in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+29°C
|
+25°C
|
+27°C | 7 h | 6 | 87% | 2 — 3 m/s |
| 2024 |
+32°C
|
+25°C
|
+27°C | 9 h | 7 | 85% | 2 — 2 m/s |
| 2023 |
+31°C
|
+25°C
|
+28°C | 10 h | 6 | 84% | 3 — 4 m/s |
| 2022 |
+33°C
|
+24°C
|
+28°C | 8 h | 6 | 82% | 2 — 3 m/s |
| 2021 |
+31°C
|
+26°C
|
+28°C | 4 h | 7 | 85% | 3 — 5 m/s |
| 2020 |
+29°C
|
+23°C
|
+26°C | 8 h | 6 | 80% | 5 — 8 m/s |
| 2019 |
+33°C
|
+27°C
|
+29°C | 5 h | 6 | 77% | 3 — 4 m/s |