Antigua Guatemala weather in September
September in Antigua Guatemala: hot, soaked, with very humid — a good time to visit.
#12 of 12 months in Antigua Guatemala · #464 of 604 destinations to visit in September · comfort 65/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Antigua Guatemala climate normals — September
| Daytime high | 26°C / 78°F | 🥵 hot |
|---|---|---|
| Nighttime low | 17°C / 63°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 302 mm / 11.9 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 18°C / 64°F | |
| Sunshine | 9.2 h/day | |
| Daylight | 12.2 h | |
| Wind | 7 km/h / 4 mph | |
| Air quality (US AQI) | 74 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Antigua Guatemala?
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Antigua Guatemala in September — FAQ
- Is September a good time to visit Antigua Guatemala?
- September in Antigua Guatemala: hot, soaked, with very humid — a good time to visit. It ranks #12 of 12 months for Antigua Guatemala on SeasonMap's comfort score (65/100).
- What is the weather like in Antigua Guatemala in September?
- In September, Antigua Guatemala averages a daily high of 25.6°C and a low of 17.4°C, with about 301.8 mm of rain over roughly 26 rainy days.
- What is the air quality in Antigua Guatemala in September?
- Antigua Guatemala has a mean US Air Quality Index of about 74 in September.