SeasonMapHuatulco weather in May
Mexico
May in Huatulco: sweltering, rainy, with clean air — fine if you can take 38°C afternoons.
#7 of 12 months in Huatulco · #756 of 1383 destinations to visit in May · comfort 79/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Huatulco in May
Other months in Huatulco
Huatulco's forum calls February about as reliable as Mexico's coast gets — one long-time visitor logged years of early-February trips with only a handful of rainy days each time, and regulars rate it the safest bet on the coast for hot, sunny, dry weather. The water stays warm from December through February too, so swimming is comfortable start to finish.
Add your own note from Huatulco's card on the map.
Huatulco climate normals — May
| Daytime high | 32°C / 90°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Feels like (high) | 38°C / 100°F | |
| Sea temperature | 30°C / 86°F | ♨️ bath-warm |
| Rainfall | 132 mm / 5.2 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 21°C / 71°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.9 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Huatulco in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyHuatulco marlin tournament(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Huatulco's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherHuatulco's best weather comes in February, March and December — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Huatulco in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Huatulco marlin tournament
1–3 MayMajor festivalCrowdedThree days out of Santa Cruz harbour at the start of May, run on catch-and-release for the billfish, and the one weekend of the year the marina is genuinely full. Source ↗
- Hazard
Pacific hurricane season
15 May – 30 NovThe eastern Pacific season opens a fortnight before the Atlantic one. Storms here usually track away from the coast, but the ones that don't come ashore fast on this stretch of Oaxaca, and September is the peak. Source ↗
Where is Huatulco?
Huatulco in May — FAQ
- Is May a good time to visit Huatulco?
- May in Huatulco: sweltering, rainy, with clean air — fine if you can take 38°C afternoons. It ranks #7 of 12 months for Huatulco on SeasonMap's comfort score (79/100).
- What is the weather like in Huatulco in May?
- In May, Huatulco averages a daily high of 32.4°C and a low of 23.4°C, with about 132.1 mm of rain over roughly 13.9 rainy days.
- What is the air quality in Huatulco in May?
- Huatulco has a mean US Air Quality Index of about 49 in May.