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Costa RicaThe weather in July in Arenal
It's hot in July in Arenal with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 34°C. At night, you can expect temperatures between 23°C and 25°C.
Looking for sun? July isn’t a good month to be in Arenal. 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 July for Arenal, 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 36°C in 2023, Arenal reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 27°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 20°C to a highest value of 27°C.
Rainfall amount
In July, there is an average of 108 mm of precipitation, spread over 13 days. The wind speed is around 4 Bft, mostly coming from the East.
Daily weather in July for Arenal
Click on any day in July to get detailed info about the usual weather on that day in Arenal. Check out the historical temperatures and precipitation over the past 10 years on this day.
July weather comparison
| Arenal | New York | |
|---|---|---|
| Average temperature | 33°C | 31°C |
| Max. temperature | 34°C | 33°C |
| Min. temperature | 23°C | -5°C |
| Total precipitation | 108 mm | 160 mm |
| Rainy days | 13 days | 18 days |
Start of July
The month of July starts in Arenal with hot temps, averaging around 33°C during the day and nights around 24°C.
Mid July
By mid-July, daytime temps stay steady at around 33°C, with nights around 25°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of July
By the end of July, the average daytime temperature in Arenal is around 33°C, while nighttime temps are about 24°C. A shower might pop up, but overall, the weather will be dry and sunny.
Find affordable trips to Arenal
UV index
The UV index is a maximum of 9 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 Arenal runs from June to November.
Check out the climate of Arenal for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in July in Arenal, Costa Rica. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in July in Arenal
Temperature in July in Arenal over the years
Precipitation charts
These charts show the average amount of precipitation in July in Arenal, 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 July in Arenal
Total precipitation in July in Arenal over the years
Daily UV index in July in Arenal
This chart shows the average daily UV index in July in Arenal, 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 July in Arenal
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Average weather in Arenal by month
Click on a month below to see detailed weather info for Arenal. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.