Vietnam / Hai Duong / 18 September

Weather in Hai Duong 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.

← 17 September
Nearby days
19 September →
+27°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +24°C Precipitation: 3.9 mm Wind: 2 — 3 m/s Humidity: 89%
MetricValue MetricValue
Day temperature (max.) +30°C Sun hours 5 h
UV index 6 Cloud cover (avg.) 77%
Pressure (avg.) 757 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.) 6 m/s Wind direction (avg.) 63° ↗ (ENE)
Sunrise
05:43
Duration
12 h 12 min
Sunset
17:55
Moonrise
02:17
Moonset
15:49
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: 0.2 mm Wind: 2 — 2 m/s Humidity: 85%
MetricValue MetricValue
Day temperature (max.) +32°C Sun hours 5 h
UV index 7 Cloud cover (avg.) 67%
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.) +25°C
Heat index (avg.) +32°C Wind chill (avg.) +28°C
Wind gusts (max.) 5 m/s Wind direction (avg.) 275° ↑ (N)
Sunrise
05:43
Duration
12 h 12 min
Sunset
17:55
Moonrise
18:08
Moonset
05:36
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: 0.2 mm Wind: 3 — 3 m/s Humidity: 85%
MetricValue MetricValue
Day temperature (max.) +32°C Sun hours 9 h
UV index 6 Cloud cover (avg.) 55%
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.) +25°C
Heat index (avg.) +32°C Wind chill (avg.) +27°C
Wind gusts (max.) 5 m/s Wind direction (avg.) 105° ↘ (SE)
Sunrise
05:43
Duration
12 h 13 min
Sunset
17:56
Moonrise
08:09
Moonset
19:50
Moon phase
Waxing Crescent
Illumination
20%
+28°C
Weather archive — for 2022 year
Partly Cloudy
Weather archive — for 2022 year
Nighttime: +24°C Precipitation: 0 mm Wind: 2 — 3 m/s Humidity: 82%
MetricValue MetricValue
Day temperature (max.) +33°C Sun hours 10 h
UV index 6 Cloud cover (avg.) 34%
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.) 4 m/s Wind direction (avg.) 235° ↘ (SSE)
Sunrise
05:43
Duration
12 h 12 min
Sunset
17:55
Moonrise
23:39
Moonset
12:45
Moon phase
Last Quarter
Illumination
37%
+28°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +25°C Precipitation: 0.1 mm Wind: 3 — 4 m/s Humidity: 85%
MetricValue MetricValue
Day temperature (max.) +32°C Sun hours 6 h
UV index 7 Cloud cover (avg.) 70%
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.) 9 m/s Wind direction (avg.) 156° ↘ (SSE)
Sunrise
05:43
Duration
12 h 12 min
Sunset
17:55
Moonrise
16:26
Moonset
02:54
Moon phase
Waxing Gibbous
Illumination
82%
+27°C
Weather archive — for 2020 year
Overcast
Weather archive — for 2020 year
Nighttime: +24°C Precipitation: 2.3 mm Wind: 6 — 8 m/s Humidity: 81%
MetricValue MetricValue
Day temperature (max.) +29°C Sun hours 3 h
UV index 6 Cloud cover (avg.) 77%
Pressure (avg.) 755 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 8 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.) 13 m/s Wind direction (avg.) 16° ↑ (NNE)
Sunrise
05:43
Duration
12 h 12 min
Sunset
17:55
Moonrise
06:18
Moonset
18:49
Moon phase
Waxing Crescent
Illumination
2%
+28°C
Weather archive — for 2019 year
Moderate or heavy rain shower
Weather archive — for 2019 year
Nighttime: +26°C Precipitation: 3.7 mm Wind: 3 — 4 m/s Humidity: 77%
MetricValue MetricValue
Day temperature (max.) +32°C Sun hours 5 h
UV index 6 Cloud cover (avg.) 82%
Pressure (avg.) 758 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 9 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.) 8 m/s Wind direction (avg.) 154° → (E)
Sunrise
05:43
Duration
12 h 13 min
Sunset
17:56
Moonrise
20:39
Moonset
08:50
Moon phase
Waning Gibbous
Illumination
63%

Weather in Hai Duong on 18 September in previous years

Year Day Nighttime Average Sun UV Humidity Wind
2025 +30°C +24°C +27°C 5 h 6 89% 2 — 3 m/s
2024 +32°C +25°C +27°C 5 h 7 85% 2 — 2 m/s
2023 +32°C +25°C +28°C 9 h 6 85% 3 — 3 m/s
2022 +33°C +24°C +28°C 10 h 6 82% 2 — 3 m/s
2021 +32°C +25°C +28°C 6 h 7 85% 3 — 4 m/s
2020 +29°C +24°C +27°C 3 h 6 81% 6 — 8 m/s
2019 +32°C +26°C +28°C 5 h 6 77% 3 — 4 m/s