Costa RicaAverage weather for San José de Alajuela in August
It's warm in August in San José de Alajuela with an average temperature of 28°C. Temperatures this month range from a low of 27°C to a high of 29°C. At night, you can expect temperatures between 19°C and 21°C.
Start of August
The month of August starts in San José de Alajuela with hot temps, averaging around 29°C during the day and nights around 21°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
With the temperature difference between day and night, it’s smart to wear layers.
Mid August
By mid-August, daytime temps drop to around 28°C, with nights around 21°C. There’s a high chance of precipitation during this time.
Since it cools down at night, it’s a good idea to wear layers.
End of August
By the end of August, the average daytime temperature in San José de Alajuela is around 28°C, while nighttime temps are about 20°C. There’s a significant chance of many days with precipitation.
Because temperatures drop in the evening, wearing layers is recommended.
In August, there is an average of 189 mm of precipitation, spread over 16 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
San José de Alajuela in August |
New York | ||
|---|---|---|---|
 Average temperature |
28°C | 30°C | |
 Max. temperature |
29°C | 31°C | |
| Min. temperature |
27°C | -5°C | |
 Total precipitation |
189 mm | 79 mm | |
| Rainy days |
16 days | 13 days | |
July
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is August a good time to visit San José de Alajuela?
Looking for sun? August isn’t a good month to be in San José de Alajuela. The temperature is nice, but there’s too much chance of rain.
The hurricane season in San José de Alajuela runs from June to November.
Temperature records
With 34°C in 2019, San José de Alajuela reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 21°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 23°C.
Check out the climate of San José de Alajuela for all months and discover the best travel time
Daily Temperature in August in San José de Alajuela
This chart shows the average daily high and low temperatures in August for San José de Alajuela, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in San José de Alajuela
The chart below shows the average daily precipitation in August for San José de Alajuela, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 16 days of precipitation in San José de Alajuela.
Daily UV index in August in San José de Alajuela
This chart shows the average daily UV index in August in San José de Alajuela, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in San José de Alajuela over the years
This chart shows the average temperature in August in San José de Alajuela, measured in degrees Celsius, over the past few years.
Total precipitation in August in San José de Alajuela over the years
This chart shows the average precipitation in August in San José de Alajuela, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in August for San José de Alajuela
Click on any day in August to get detailed info about the usual weather on that day in San José de Alajuela. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in San José de Alajuela
Have you been to San José de Alajuela in August?
Share your weather experience in August in San José de Alajuela.
Average weather in San José de Alajuela by month
Click on a month below to see detailed weather info for San José de Alajuela. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of San José de Alajuela for all months at once
