Visit Sapa in Vietnam
Balancing on the edges of a rice field with endless views. A trek through the valley of Sapa is definitely a must for the bucket list.
August in Cau Ha brings very high temperatures around 33°C (91°F) during the day, dropping to 27°C (81°F) at night, with quite a bit of rainfall expected, averaging around 147 mm (5.8 in) for the month.
If you're looking for dry conditions and comfortable temperatures, August may not be the ideal month to visit Cau Ha. Our weather planner can help you explore destinations with more pleasant weather conditions.
Pick a month to see the average temperature, rainfall and sunshine in Cau Ha - and find the best time to visit.
49-year average (1976-2025)
Based on our historical records, temperatures in Cau Ha typically stay consistent throughout August, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 26°C (79°F).
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Cau Ha spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 40 years of weather observations (1986-2026), these are the most extreme conditions recorded in Cau Ha.
Find out more about the weather in Vietnam and which places have the best travel conditions in this month. See all of Vietnam in August →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pack for serious heat in Cau Ha in August. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Cau Ha climate overview or explore weather in Vietnam.
Where to go in August - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit Sapa in Vietnam
Balancing on the edges of a rice field with endless views. A trek through the valley of Sapa is definitely a must for the bucket list.
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