San José Weather in August
During August, San José experiences very high daytime temperatures of 34°C (93°F) and cooler nights around 24°C (75°F).
August sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in San José in August
San José is in the rainy season in August, with rain on around
18 days and an average of
186 mm (7.3 in).
Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in San José in August
August in San José brings very high temperatures, with highs of
34°C (93°F) and nights around
24°C (75°F).
Sunshine and humidity can make it feel even warmer than the raw temperature suggests.
With lows around
24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.
If you're looking for dry conditions and comfortable temperatures, August may not be the ideal month to visit San José. Our weather planner can help you explore destinations with more pleasant weather conditions.
perfect weather
pleasant
tolerable
unpleasant
poor
Avg daytime high
-5°C (23°F) cold → 32°C (90°F) hot
Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Marker color shows the average daytime high temperature in August: blue is cold, red is hot.
Marker color shows total monthly precipitation in August: pale blue is dry, deep blue is wet.