San Juan long range weather

This page presents a long range weather forecast for San Juan in December as well as other months. You can quickly get a brief overview of the weather to expect in December on a daily basis.

The San Juan extended forecast data provided is based on the average values of previous years.

See weather calendar ››

Select a month and click on a day for more information:

°C °F

Weather in November
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Weather in January >>

San Juan 30 days weather forecast

Check out our estimated 30 days weather forecast for San Juan, this data is based on the average weather in San Juan in the last few years.

For a more accurate and detailed forecast, check out the 14 day weather for San Juan next to the desired date.

Sun	Mon	Tue	Wed	Thu	Fri	Sat
1 28° /24°	2 29° /24°	3 29° /24°	4 29° /24°	5 29° /24°	6 30° /23°	7 28° /23°
8 29° /23°	9 29° /23°	10 28° /23°	11 27° /24°	12 28° /24°	13 28° /23°	14 28° /23°
15 27° /23°	16 27° /23°	17 27° /23°	18 28° /23°	19 28° /23°	20 28° /23°	21 28° /23°
22 28° /23°	23 29° /23°	24 28° /23°	25 29° /23°	26 28° /23°	27 28° /22°	28 28° /23°
29 27° /22°	30 27° /23°	31 27° /23°

San Juan long range weather forecast - FAQ

Do you provide 30 days weather forecast for San Juan?

You can see the next 30 weather forecast for San Juan at the top of the page, the next 14 days (from today) are more accurate, while the other is based on average of previous years.

Can I see the weather forecast for a particular date in San Juan?

Sure, you can select the date from the calendar above to view the forecast in San Juan on that date.

How accurate is the long-range weather forecast for San Juan?

Our long-range weather forecast for San Juan is provided by using statistics from previous years. Although we cannot predict the weather months in advance, we can see an average.

Can I see a long-range weather forecast for different countries?

Yes, we provide a 14 day weather forecast and a long-range weather forecast for different countries and cities. You can search for a location in the search box at the top of the page.