San José Weather in September
September in San José brings very high temperatures around 33°C (91°F) during the day, dropping to 24°C (75°F) at night, with the most rainfall of the year.
Rainfall in San José in September
As part of the rainy season, San José sees around 17 days of rain in September, with an average of 252 mm (9.9 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in San José in September
September in San José brings typical temperatures with highs around 33°C (91°F) and lows of 24°C (75°F). Mornings and evenings are often more comfortable than the peak afternoon hours. At 24°C (75°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.September in San José 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.
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 San José's climate page.
San José Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
33°C (91°F)
Chance of Rain
58%
Precipitation
252 mm (9.9 in)
Rainy days
17 days
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in San José in September
Hot weather in September means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!What To Do in San José 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 San José's climate page.
See the full San José climate overview or explore weather in Guatemala.
