Costa RicaAverage weather for San José de Alajuela in December
It's warm in December 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 28°C. At night, you can expect temperatures between 19°C and 21°C.
Start of December
The month of December starts in San José de Alajuela with hot temps, averaging around 28°C during the day and nights around 21°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
Mid December
By mid-December, daytime temps stay steady at around 28°C, with nights around 20°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
Since it cools down at night, it’s a good idea to wear layers.
End of December
By the end of December, the average daytime temperature in San José de Alajuela is around 28°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.
Because temperatures drop in the evening, wearing layers is recommended.
In December, there is an average of 41 mm of precipitation, spread over 4 days. The wind speed is around 4 Bft, mostly coming from the East.
San José de Alajuela in December |
New York | ||
|---|---|---|---|
 Average temperature |
28°C | 9°C | |
 Max. temperature |
28°C | 12°C | |
| Min. temperature |
27°C | -5°C | |
 Total precipitation |
41 mm | 133 mm | |
| Rainy days |
4 days | 17 days | |
November
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.
Is December a good time to visit San José de Alajuela?
Looking for great weather? December is a good time to be in San José de Alajuela. The temperatures are nice, and there’s not too much rain.
The hurricane season in San José de Alajuela runs from June to November.
Temperature records
With 31°C in 2015, San José de Alajuela reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 21°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 15°C to a highest value of 22°C.
Check out the climate of San José de Alajuela for all months and discover the best travel time
Daily Temperature in December in San José de Alajuela
This chart shows the average daily high and low temperatures in December 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 December in San José de Alajuela
The chart below shows the average daily precipitation in December 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 December, you can expect about 4 days of precipitation in San José de Alajuela.
Daily UV index in December in San José de Alajuela
This chart shows the average daily UV index in December 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 December in San José de Alajuela over the years
This chart shows the average temperature in December in San José de Alajuela, measured in degrees Celsius, over the past few years.
Total precipitation in December in San José de Alajuela over the years
This chart shows the average precipitation in December 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 December for San José de Alajuela
Click on any day in December 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 December in San José de Alajuela
Have you been to San José de Alajuela in December?
Share your weather experience in December 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
