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Caribbean Region

Weather > Caribbean Region

Caribbean Region

Written By: Ryan Van Velzer
Last updated: Nov 01, 2022

The Caribbean weather region stretches from Tortuguero in the north all the way down to Gandoca Manzanillo at Costa Rica's southern tip.  It also includes the inland towns of Siquirres and Guapiles as well as lush ribbons of rainforest, white sand beaches and coral reef. 

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The Caribbean weather region has no definable dry season, but that doesn't mean there isn't any sun. The least rainy months tend to be February/March and September/October. On average, the Caribbean weather region receives 141 inches of rain per year, with the rainiest months being July, November and December. Despite all the rain, patches of sunshine pierce through the clouds and radiate the landscape in between the scattered showers. All months have at least four to five hours of sun daily except July, the cloudiest and rainiest month of the year. March and April are the sunniest months with more than five to six hours of sun per day. Temperatures are relatively consistent year round with daily averages between 77 and 81 degrees. May, June and October are the warmest months with average daily highs of 88 degree while the coolest day time temperatures are found during January, February, July and December, with an average of 84 degrees. Night time temperatures range from 68 to 71 degrees and are usually cool and comfortable. 

Most days are blessed with trade winds that help buffer the high humidity, The Caribbean weather region is the most humid region in Costa Rica.  Humidity values are fairly consistent throughout the year. March and April tend to be the least humid months at 84 percent humidity while the rest of the year experiences averages between 87 and 90 percent humidity.  June, July, November and December are the most humid with values reaching 90 percent humidity (these are also the rainiest months).

 Guapiles

MonthAverage HighsAverage LowsAverage RainfallHumidity
 FCFCin.mm%
Jan. 82 28 65 19 10.77 276 85
Feb. 82 28 66 19 9.3 238 85
Mar. 83 29 67 19 8.4 215 85
Apr. 84 29 68 20 9.42 242 86
May 85 30 70 21 16.79 430 88
Jun. 85 29 70 21 17.3 444 89
Jul. 83 29 70 21 19.88 510 90
Aug. 84 29 69 21 18.51 475 89
Sep. 85 29 69 21 14.66 376 88
Oct. 84 29 69 21 17.47 448 89
Nov. 83 28 69 20 18.37 471 89
Dec. 82 28 67 20 17.62 452 87

Limon

MonthAverage HighsAverage LowsAverage RainfallHumidity
 FCFCin.mm%
Jan. 88 31 68 20 12.48 317 87
Feb. 88 31 68 20 8.31 211 87
Mar. 87 31 69 21 9.21 234 85
Apr. 87 31 71 22 10.87 276 85
May 87 31 71 22 11.1 282 87
Jun. 87 31 71 22 11.65 296 88
Jul. 88 31 71 22 16.81 427 89
Aug. 68 20 71 22 12.28 312 88
Sep. 87 31 71 22 5.71 145 87
Oct. 87 31 71 22 8.11 206 87
Nov. 85 29 69 21 15.39 391 89
Dec. 88 31 69 21 17.52 445 88

Sixaola

MonthAverage HighsAverage LowsAverage RainfallHumidity
 FCFCin.mm%
Jan. 87 31 69 21 7.06 180.9 n/a
Feb. 84 29 68 20 5.97 153.1 n/a
Mar. 86 30 70 21 7 179.4 n/a
Apr. 87 30 70 21 9.66 247.6 n/a
May 88 31 73 23 10.04 257.4 n/a
Jun. 86 30 71 22 7.6 194.9 n/a
Jul. 87 31 72 22 10.65 273.1 n/a
Aug. 88 31 73 23 10.1 258.9 n/a
Sep. 89 31 72 22 5.78 148.1 n/a
Oct. 88 31 71 22 6.5 166.7 n/a
Nov. 87 30 71 22 8.24 211.2 n/a
Dec. 85 30 70 21 12.88 330.2 n/a

Tortuguero

MonthAverage HighsAverage LowsAverage RainfallHumidity
 FCFCin.mm%
Jan. 88 31 68 20 12.48 317 n/a
Feb. 88 31 68 20 8.31 211 n/a
Mar. 87 31 59 15 8.03 204 n/a
Apr. 87 31 71 22 10.87 276 n/a
May 87 31 71 22 11.1 282 n/a
Jun. 87 31 71 22 11.65 296 n/a
Jul. 88 31 71 22 16.81 427 n/a
Aug. 86 30 71 22 12.28 312 n/a
Sep. 87 31 71 22 5.71 145 n/a
Oct. 87 31 71 22 8.19 208 n/a
Nov. 85 29 69 21 15.39 391 n/a
Dec. 88 31 69 21 17.56 446 n/a

Source: National Weather Services of Costa Rica

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