Normal weather in San Juan in August
The weather in San Juan in August has an average temperature of around 7°C during the day. On average, August sees 22 mm of rain in San Juan. The total amount of snow in August is about 5,7 cm of snow. The wind speed is 6 Beaufort and mainly comes from Southwest.
After July, August in San Juan starts with a temperature of 7°C and ends around September at 8°C.
August averages for San Juan
 Average temperature | 7°C |
 Highest daytime temperature | 9°C |
| Lowest daytime temperature | 5°C |
 Total rainfall | 22 mm |
| Rainy days | 10 days |
 Total snowfall | 5,7 cm |
| Snowy days | 7 days |
Temperature per day in August in San Juan
This graph shows the average daily maximum temperatures in August in San Juan, indicated in degrees Celsius.
Precipitation per day in August in San Juan
This graph shows the average daily precipitation in August in San Juan, indicated in millimeters.
Snowfall per day in August in San Juan
This graph shows the average daily snowfall in August in San Juan, indicated in centimeters.
UV index per day in August in San Juan
This graph shows the average daily UV index in August in San Juan.
Yearly temperature in August in San Juan
This graph shows the average yearly temperature in August in San Juan, measured in degrees Celsius, over the past years.
Yearly total precipitation in August in San Juan
This graph shows the average yearly precipitation in millimeters in August in San Juan, over the past years.
Yearly snowfall in August in San Juan
This graph shows the average yearly snowfall in August in San Juan, measured in centimeters, over the past years.
Average daily weather in August
Click on a day to get more information about the average weather on that day.
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Average weather in San Juan per month
Click on a month below to see in detail how the weather typically is in San Juan and what to expect. Based on the historical weather data of San Juan, you can view the average temperature, precipitation, wind, and UV index for each day of the month.