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Costa RicaThe weather in December in Alto
It's warm in December in Alto with an average temperature of 27°C. Temperatures this month range from a low of 26°C to a high of 28°C. At night, you can expect temperatures between 19°C and 20°C.
Looking for great weather? December is a good time to be in Alto. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Alto, 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 30°C in 2015, Alto reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 20°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 12°C to a highest value of 22°C.
Rainfall amount
In December, there is an average of 37 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the East.
Daily weather in December for Alto
Click on any day in December to get detailed info about the usual weather on that day in Alto. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Alto | New York | |
|---|---|---|
| Average temperature | 27°C | 9°C |
| Max. temperature | 28°C | 12°C |
| Min. temperature | 19°C | -5°C |
| Total precipitation | 37 mm | 133 mm |
| Rainy days | 6 days | 17 days |
Start of December
The month of December starts in Alto with hot temps, averaging around 27°C during the day and nights around 20°C.
Mid December
By mid-December, daytime temps stay steady at around 27°C, with nights around 20°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of December
By the end of December, the average daytime temperature in Alto is around 27°C, while nighttime temps are about 20°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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 Alto runs from June to November.
Check out the climate of Alto for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in December in Alto, Costa Rica. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Alto
Temperature in December in Alto over the years
Precipitation charts
These charts show the average amount of precipitation in December 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.
Daily Precipitation in December in Alto
Total precipitation in December in Alto over the years
Daily UV index in December in Alto
This chart shows the average daily UV index in December in Alto, 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 December in Alto
Have you been to Alto in December?
Share your weather experience in December in Alto.
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.