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.
Cao Bằng in May averages 30°C (86°F) during the day and 22°C (72°F) at night. May is part of the rainy season, so frequent rainfall is typical.
May in Cao Bằng can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Cao Bằng - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Cao Bằng typically stay consistent throughout May, with daily highs averaging around 30°C (86°F). Nights are warm, with lows typically ranging from 21°C (70°F) to 23°C (73°F).
50-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 Cao Bằng spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 50 years of weather records for Cao Bằng, the following extremes were recorded between 1976 and 2026.
Find out more about the weather in Vietnam and which places have the best travel conditions in this month. See all of Vietnam in May →
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).
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Bring sunglasses since you'll have some sunny periods throughout the month
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Cao Bằng climate overview or explore weather in Vietnam.
Where to go in May - 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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