Costa Rica Guide

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Rainfall Contour Maps

The contour maps of Costa Rica below show the average monthly Rainfall,  Hours of Sunshine per day, and Average Number of Sunny Days for each month of the year and every region of Costa Rica color coded by the legend at the bottom of each.

There are a number of other weather map resources on Costa Rica Guide including a series of maps like this for high and low temperatures each month of the year for each region, an action packed little map that pops up a chart of rainfall for each month when you mouseover any region and another that does the same for temperatures.

A long article with lots of diagrams explains the basics of how weather works in Costa Rica, a live map of today’s weather, current storms, and there are even instructions to make your own accurate weather forecast.

If this is all WAY more than you were looking for then the general weather tendencies for every month of the year are summarized on the Best Time To Visit Costa Rica page along with a calendar of sea turtle nesting, whale migrations, quetzal nesting, surf size, tides charts, holidays, fiestas and music festivals for every month of the year.

January monthly average rainfall contour map of Costa Rica
January Rainfall
January monthly average number of days without rain contour map of Costa Rica
January Sunny Days
January monthly average percent of the time the sun shines contour map of Costa Rica
January Sunshine %
February monthly average rainfall contour map of Costa Rica
February Rainfall
February monthly average number of days without rain contour map of Costa Rica
February Sunny Days
February monthly average percent of the time the sun shines contour map of Costa Rica
February Sunshine %
March monthly average rainfall contour map of Costa Rica
March Rainfall
March monthly average number of days without rain contour map of Costa Rica
March Sunny Days
March monthly average percent of the time the sun shines contour map of Costa Rica
March Sunshine %
Apriol monthly average rainfall contour map of Costa Rica
April Rainfall
April monthly average number of days without rain contour map of Costa Rica
April Sunny Days
April monthly average percent of the time the sun shines contour map of Costa Rica
April Sunshine %
May monthly average rainfall contour map of Costa Rica
May Rainfall
May monthly average number of days without rain contour map of Costa Rica
May Sunny Days
May monthly average percent of the time the sun shines contour map of Costa Rica
May Sunshine %
June monthly average rainfall contour map of Costa Rica
June Rainfall
June monthly average number of days without rain contour map of Costa Rica
June Sunny Days
June monthly average percent of the time the sun shines contour map of Costa Rica
June Sunshine %
July monthly average rainfall contour map of Costa Rica
July Rainfall
July monthly average number of days without rain contour map of Costa Rica
July Sunny Days
July monthly average percent of the time the sun shines contour map of Costa Rica
July Sunshine %
August monthly average rainfall contour map of Costa Rica
August Rainfall
August monthly average number of days without rain contour map of Costa Rica
August Sunny Days
August monthly average percent of the time the sun shines contour map of Costa Rica
August Sunshine %
September monthly average rainfall contour map of Costa Rica
September Rainfall
September monthly average number of days without rain contour map of Costa Rica
September Sunny Days
September monthly average percent of the time the sun shines contour map of Costa Rica
September Sunshine %
October monthly average rainfall contour map of Costa Rica
October Rainfall
October monthly average number of days without rain contour map of Costa Rica
October Sunny Days
October monthly average percent of the time the sun shines contour map of Costa Rica
October Sunshine %
November monthly average rainfall contour map of Costa Rica
November Rainfall
November monthly average number of days without rain contour map of Costa Rica
November Sunny Days
November monthly average percent of the time the sun shines contour map of Costa Rica
November Sunshine %
December monthly average rainfall contour map of Costa Rica
December Rainfall
December monthly average number of days without rain contour map of Costa Rica
December Sunny Days
December monthly average percent of the time the sun shines contour map of Costa Rica
December Sunshine %

You may be looking at these maps and wondering how they can simultaneously show so much rainfall and so much sunshine and days without rain. There are two main reasons.

First, most of the rain falls in fairly heavy storms so while there may be a downpour for a couple of hours there will also be 8 or 10 hours of sunshine that day as well.  The second reason is that much of the rain (65-80% depending on the micro-climate) falls overnight.

Ray & Sue

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