The climate of Alto

The current climate in Alto features temperatures ranging from a high of 29°C to a low of 27°C throughout the year. The average yearly temperature is around 28°C. At night, temperatures in the colder months average around 19°C and in the warmer months around 20°C.

Average temperatures and precipitation

This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Alto, Costa Rica.

Temperature records

The highest temperature recorded in Alto in recent years was 33°C in October 2017. The lowest daytime temperature recorded was 19°C in October 2017.

Rainfall amount

On average, Alto receives 1795 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.

The hurricane season in Alto runs from June to November.

Best time to visit Alto?

The best time to visit Alto for sunny weather is January through April and December. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Alto. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.

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Climate Table of Alto

The climate table of Alto shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Temp. max (°C)	27	27	28	29	28	27	27	27	27	27	27	27
Temp. min (°C)	19	19	20	20	20	20	20	20	19	19	19	20
Precipitation
Precipitation (mm)	7,5	1,6	45	83	273	239	170	201	284	287	166	37
UV Index	8	8	9	8	7	7	7	7	7	7	6	7

Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.

Temperature charts

These charts display the average temperatures in Alto, Costa Rica. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Average Temperature per Month in Alto

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Yearly Temperature in Alto

Precipitation charts

These charts show the average amount of precipitation in Alto, 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.

Average Precipitation per Month in Alto

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Total Yearly Precipitation in Alto

UV index chart

This chart shows the average UV index per month in Alto, Costa Rica. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.

Average UV Index per Month in Alto

Weather experiences in Alto

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Average weather in Alto by month

Click on a month below to see detailed weather info for Alto. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.