Costa Rica monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Costa Rica

Costa Rica average temperature chart (Celsius) Costa Rica average temperature chart (Fahrenheit)
Average monthly temperatures in Costa Rica (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 30.6 31 29.7 28.3 26 23.1 24.8 25.7 26.5 27.9 29.8 30.5
°F 87.1 87.7 85.5 83 78.7 73.6 76.7 78.3 79.7 82.3 85.7 86.9

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Costa Rica monthly rainfall chart (mm) Costa Rica monthly rainfall chart (inches)
Average monthly rainfall in Costa Rica (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 155 136 129 119 142 95 61 69 121 191 183 198
inches 6.1 5.4 5.1 4.7 5.6 3.7 2.4 2.7 4.8 7.5 7.2 7.8
Rainy days 12 11 9 7 7 7 5 6 7 10 9 11

Average annual rainfall in Costa Rica: 1519.9mm (598.4 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Costa Rica

Costa Rica average daily sunshine chart
Average daily sunshine Costa Rica
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.1 7.2 7.2 7.2 6.4 6 6.7 6 5.3 6.9 7.6 7

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Costa Rica average minimum / maximum temperatures (Celsius) Costa Rica average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Costa Rica (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 20.8 20.8 19.7 17 14.6 12.5 12.3 13.6 16.7 17.6 18.7 20.1
Max °C 30.9 31.2 30 28.6 26.3 23.4 25.2 26 26.8 28.2 30.1 30.8
Min °F 69.4 69.4 67.4 62.6 58.2 54.4 54.1 56.5 62 63.7 65.7 68.1
Max °F 78.4 78.8 76.6 73 68.7 64.2 65.7 67.6 71.1 73.2 75.9 77.7

Sea temperature

The graph below shows the average sea temperature.

Costa Rica average sea temperature chart (Celsius) Costa Rica average sea temperature chart (Fahrenheit)
Average sea temperature around Costa Rica in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 25 25.4 24.9 23.7 21.8 20.1 19 18.6 19.1 20.3 21.8 23.5
°F 77 77.8 76.9 74.6 71.2 68.2 66.1 65.4 66.4 68.5 71.3 74.3

Wind speed

The graph below shows the average wind speed.

Costa Rica average winspeed by month (km/h) Costa Rica average winspeed by month (mph)
Average wind speed in Costa Rica (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 8 6 7 8 8 9 9 11 10 10 10 11
mph 5 4 4 5 5 5 6 7 6 7 7 7

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Costa Rica relative humidity averages
Average relative humidity in Costa Rica
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
78% 79% 82% 85% 80% 79% 76% 72% 72% 76% 74% 77%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Costa Rica weather stats

Costa Rica weather statistics
Hottest month: February 31°C 87.8°F
Driest month: July 61mm 2.4ins
Sunniest month: April 7.2hrs
Coldest month: June 23.1°C 73.6°F
Wettest month: December 198mm 7.8ins
Warmest sea: February 25.4°C 77.7°F
Map showing location of Costa Rica (-23.41667, -54.65) Costa Rica map pin © Google

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