San José Weather in August

August in San José brings pleasant temperatures, with daytime highs of 21°C (70°F) and nights around 8°C (46°F). Quite a bit of rainfall is expected, around 90 mm (3.5 in), so pack an umbrella.

Rainfall in San José in August

Based on our climate data of the past 30 years, about 7 days of rain are anticipated, with 90 mm (3.5 in) on average. Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.

Temperature in San José in August

If you're visiting San José in August, expect excellent temperatures with highs of 21°C (70°F) and overnight lows of 8°C (46°F). During August, the winter season is in full swing. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, August and September typically offer the best weather for San José.