Vietnam / Sa Pa / 18 August

Weather in Sa Pa on 18 August 2026

Preliminary outlook for 18 August 2026

A preliminary estimate based on the 2019–2025 archive: daytime around +30°C and nighttime around +23°C, average precipitation 4.7 mm, wind around 1 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 August
Nearby days
19 August →
+25°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +22°C Precipitation: 1.2 mm Wind: 1 — 1 m/s Humidity: 78%
MetricValue MetricValue
Day temperature (max.) +31°C Sun hours 11 h
UV index 6 Cloud cover (avg.) 66%
Pressure (avg.) 756 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 7 km Sea temperature
Feels like (avg.) +27°C Dew point (avg.) +20°C
Heat index (avg.) +27°C Wind chill (avg.) +25°C
Wind gusts (max.) 3 m/s Wind direction (avg.) 177° ↗ (NE)
Sunrise
05:43
Duration
12 h 50 min
Sunset
18:33
Moonrise
00:21
Moonset
14:37
Moon phase
Last Quarter
Illumination
29%
+26°C
Weather archive — for 2024 year
Cloudy
Weather archive — for 2024 year
Nighttime: +22°C Precipitation: 0 mm Wind: 1 — 1 m/s Humidity: 74%
MetricValue MetricValue
Day temperature (max.) +32°C Sun hours 7 h
UV index 7 Cloud cover (avg.) 56%
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.) +23°C
Heat index (avg.) +31°C Wind chill (avg.) +28°C
Wind gusts (max.) 3 m/s Wind direction (avg.) 196° ↗ (ENE)
Sunrise
05:43
Duration
12 h 50 min
Sunset
18:33
Moonrise
17:41
Moonset
03:43
Moon phase
Waxing Gibbous
Illumination
93%
+27°C
Weather archive — for 2023 year
Overcast
Weather archive — for 2023 year
Nighttime: +26°C Precipitation: 0 mm Wind: 1 — 1 m/s Humidity: 87%
MetricValue MetricValue
Day temperature (max.) +29°C Sun hours 9 h
UV index 6 Cloud cover (avg.) 80%
Pressure (avg.) 754 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.) +28°C
Wind gusts (max.) 4 m/s Wind direction (avg.) 223° ↖ (NNW)
Sunrise
05:42
Duration
12 h 52 min
Sunset
18:34
Moonrise
07:03
Moonset
19:53
Moon phase
Waxing Crescent
Illumination
9%
+27°C
Weather archive — for 2022 year
Cloudy
Weather archive — for 2022 year
Nighttime: +23°C Precipitation: 0 mm Wind: 1 — 1 m/s Humidity: 82%
MetricValue MetricValue
Day temperature (max.) +31°C Sun hours 5 h
UV index 6 Cloud cover (avg.) 84%
Pressure (avg.) 753 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.) +28°C
Wind gusts (max.) 3 m/s Wind direction (avg.) 189° → (ESE)
Sunrise
05:42
Duration
12 h 52 min
Sunset
18:34
Moonrise
22:55
Moonset
11:30
Moon phase
Waning Gibbous
Illumination
54%
+26°C
Weather archive — for 2021 year
Partly Cloudy
Weather archive — for 2021 year
Nighttime: +22°C Precipitation: 0 mm Wind: 1 — 1 m/s Humidity: 84%
MetricValue MetricValue
Day temperature (max.) +31°C Sun hours 10 h
UV index 6 Cloud cover (avg.) 65%
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.) +24°C
Heat index (avg.) +30°C Wind chill (avg.) +27°C
Wind gusts (max.) 4 m/s Wind direction (avg.) 265° ← (W)
Sunrise
05:43
Duration
12 h 50 min
Sunset
18:33
Moonrise
15:08
Moonset
01:04
Moon phase
Waxing Gibbous
Illumination
69%
+22°C
Weather archive — for 2020 year
Moderate or heavy rain shower
Weather archive — for 2020 year
Nighttime: +20°C Precipitation: 31.2 mm Wind: 1 — 1 m/s Humidity: 99%
MetricValue MetricValue
Day temperature (max.) +24°C Sun hours 1 h
UV index 5 Cloud cover (avg.) 96%
Pressure (avg.) 755 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 7 km Sea temperature
Feels like (avg.) +24°C Dew point (avg.) +23°C
Heat index (avg.) +25°C Wind chill (avg.) +22°C
Wind gusts (max.) 4 m/s Wind direction (avg.) 137° → (ESE)
Sunrise
05:43
Duration
12 h 50 min
Sunset
18:33
Moonrise
04:31
Moonset
18:12
Moon phase
New Moon
Illumination
0%
+28°C
Weather archive — for 2019 year
Clear/Sunny
Weather archive — for 2019 year
Nighttime: +25°C Precipitation: 0.4 mm Wind: 1 — 1 m/s Humidity: 79%
MetricValue MetricValue
Day temperature (max.) +33°C Sun hours 13 h
UV index 6 Cloud cover (avg.) 42%
Pressure (avg.) 753 mmHg Snow (total for the day) 0 cm
Visibility (avg.) 8 km Sea temperature
Feels like (avg.) +33°C Dew point (avg.) +23°C
Heat index (avg.) +33°C Wind chill (avg.) +29°C
Wind gusts (max.) 4 m/s Wind direction (avg.) 182° ↗ (NE)
Sunrise
05:42
Duration
12 h 52 min
Sunset
18:34
Moonrise
20:29
Moonset
07:46
Moon phase
Waning Gibbous
Illumination
78%

Weather in Sa Pa on 18 August in previous years

Year Day Nighttime Average Sun UV Humidity Wind
2025 +31°C +22°C +25°C 11 h 6 78% 1 — 1 m/s
2024 +32°C +22°C +26°C 7 h 7 74% 1 — 1 m/s
2023 +29°C +26°C +27°C 9 h 6 87% 1 — 1 m/s
2022 +31°C +23°C +27°C 5 h 6 82% 1 — 1 m/s
2021 +31°C +22°C +26°C 10 h 6 84% 1 — 1 m/s
2020 +24°C +20°C +22°C 1 h 5 99% 1 — 1 m/s
2019 +33°C +25°C +28°C 13 h 6 79% 1 — 1 m/s