Antigua Guatemala Weather in September
September in Antigua Guatemala brings high temperatures, with daytime highs of 25°C (77°F) and nights around 16°C (61°F). It's also the wettest month of the year, so an umbrella is a must.
Rainfall in Antigua Guatemala in September
Antigua Guatemala is in the rainy season in September, with rain on around 26 days and an average of 309 mm (12 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in Antigua Guatemala in September
In September, Antigua Guatemala gets high temperatures, with highs of 25°C (77°F). Nights cool to around 16°C (61°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 16°C (61°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Antigua Guatemala in September
The city usually sees around 160 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).September in Antigua Guatemala has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Guatemala, check out our Antigua Guatemala's climate page.
Antigua Guatemala Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
25°C (77°F)
Chance of Rain
85%
Precipitation
309 mm (12 in)
Rainy days
26 days
Humidity
84% *
Sunshine
160 hours *
Percentage Sunshine
*
Daily Historical Temperatures
40-year average (1976-2025)
Based on our historical records, temperatures in Antigua Guatemala typically stay consistent throughout September, with daily highs averaging around 25°C (77°F). Nights are pleasant, with lows around 17°C (63°F).
Average temperatures in September
Historical weather for Antigua Guatemala in September
Browse day-by-day weather records for Antigua Guatemala spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Antigua Guatemala historical weather extremes in September
Based on 23 years of weather observations in Antigua Guatemala between 2002 and 2025, these are the recorded extremes.
- On September 24, 2006, temperatures climbed to 33°C (91°F), marking the warmest September day on record.
- On September 15, 2025, Antigua Guatemala saw its coldest September day with temperatures maxing out at 18°C (64°F).
- Antigua Guatemala registered its coldest September night on September 5, 2018, with temperatures dropping to 15°C (59°F).
Best Places in Guatemala in September
Find out more about the weather in Guatemala and which places have the best travel conditions in this month. See all of Guatemala in September →
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What to Wear in Antigua Guatemala in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Antigua Guatemala in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Guatemala, check out our Antigua Guatemala's climate page.
Temperature Rainfall Sunshine Humidity
See the full Antigua Guatemala climate overview or explore weather in Guatemala.
