Valle de San José Weather in September

September in Valle de San José brings high temperatures, with daytime highs of 24°C (75°F) and nights around 14°C (57°F). It's part of the rainy season, with 399 mm (16 in) of rainfall on average, so an umbrella or poncho is a good idea.

Rainfall in Valle de San José in September

Valle de San José is in the rainy season in September, with rain on around 19 days and an average of 399 mm (16 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.

Temperature in Valle de San José in September

In September, Valle de San José gets high temperatures, with highs of 24°C (75°F). Nights cool to around 14°C (57°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 14°C (57°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.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Valle de San José. Our weather planner can help you explore destinations with more pleasant weather conditions.