Oaxaca weather in May
May in Oaxaca: hot, a little rain — an excellent time to visit.
#9 of 12 months in Oaxaca · #158 of 604 destinations to visit in May · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Oaxaca climate normals — May
| Daytime high | 29°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 16°C / 60°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 51 mm / 2 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 57% | 🍃 comfortable |
| Dew point | 12°C / 53°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 12.9 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 64 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Oaxaca?
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Oaxaca in May — FAQ
- Is May a good time to visit Oaxaca?
- May in Oaxaca: hot, a little rain — an excellent time to visit. It ranks #9 of 12 months for Oaxaca on SeasonMap's comfort score (87/100).
- What is the weather like in Oaxaca in May?
- In May, Oaxaca averages a daily high of 29.3°C and a low of 15.7°C, with about 50.9 mm of rain over roughly 9.4 rainy days.
- What is the air quality in Oaxaca in May?
- Oaxaca has a mean US Air Quality Index of about 64 in May.