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Costa RicaThe weather in August in Fortuna
It's warm in August in Fortuna with an average temperature of 29°C. Temperatures this month range from a low of 28°C to a high of 30°C. At night, you can expect temperatures between 21°C and 22°C.
Looking for sun? August isn’t a good month to be in Fortuna. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Fortuna, Costa Rica. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 37°C in 2023, Fortuna reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 23°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 27°C.
Rainfall amount
In August, there is an average of 211 mm of precipitation, spread over 21 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in August for Fortuna
Click on any day in August to get detailed info about the usual weather on that day in Fortuna. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Fortuna | New York | |
|---|---|---|
| Average temperature | 29°C | 30°C |
| Max. temperature | 30°C | 31°C |
| Min. temperature | 21°C | -5°C |
| Total precipitation | 211 mm | 79 mm |
| Rainy days | 21 days | 13 days |
Start of August
The month of August starts in Fortuna with hot temps, averaging around 30°C during the day and nights around 22°C.
Mid August
By mid-August, daytime temps drop to around 29°C, with nights around 22°C. There’s a high chance of precipitation during this time.
End of August
By the end of August, the average daytime temperature in Fortuna is around 29°C, while nighttime temps are about 21°C. There’s a significant chance of many days with precipitation.
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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.
The hurricane season in Fortuna runs from June to November.
Check out the climate of Fortuna for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in August in Fortuna, Costa Rica. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Fortuna
Temperature in August in Fortuna over the years
Precipitation charts
These charts show the average amount of precipitation in August in Fortuna, Costa Rica. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Fortuna
Total precipitation in August in Fortuna over the years
Daily UV index in August in Fortuna
This chart shows the average daily UV index in August in Fortuna, 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.
Weather experiences in August in Fortuna
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Average weather in Fortuna by month
Click on a month below to see detailed weather info for Fortuna. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.