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On world renowned Playa Hermosa in Jacó, Costa Rica.



Below is a description of typical Costa Rica weather. Temperatures vary little between the two dominant (dry and green) seasons in Costa Rica.

Costa Rica is a tropical country situated between 8° and 11° above the equator. It has only two seasons: dry and green! The dry season with very little rain is generally between late December and April and the green or wet season lasts the rest of the year - May through November, but still offers an average of about 5 hours of daily sunshine. The Caribbean coast doesen't have this extended dry weather and stays green all year round and due to the humidity, tends to be a little oppressive sometimes. The Central Mountainous Region is more temperate, like the spring-like weather in San José.

Temperatures vary little between seasons. The main influence on temperature is altitude. San José at 1150 m (3772 ft) has a climate which the locals refer to as the "eternal Spring". It has simply delightful weather all year around! Average temperature ranges in San José are from 14 to 24 °C (57 to 75 °F) in December to 17 to 27 °C (63 to 81 °F) in May. National Geographic rates it some of the best in the world!

The Northern Pacific Region is referred to as the "Gold Coast" and has an abundance of large resort hotels because of the drier and sunnier climate. It is also referred to as the "Guanacaste Area". The area along the Central Pacific is greener, because of more rainfall, and then going more south toward Dominical and further, it rains more and is more humid. However, you can be quite comfortable in the lowlands weather of either side if you dress minimally, don't exercise too much, and limit your exposure to the midday, intense tropical sun. Don't forget to bring your suntan lotion (with sun block protection) and enjoy!

The lower level, sea level coasts are much hotter, with the Caribbean averaging 21°C (70°F) at night and over 30°C (86°F) during the day. The Pacific side is a few degrees warmer still, but the humidity is generally less, so it tends to be more comfortable.

SOURCE: 1 Costa Rica Link

historical weather chart for San José, Costa Rica

Generally speaking, Jacó weather conditions are dryer and warmer than those of San José. For comparitive reasons however, below is a chart that provides historical data for Costa Rica's capital city.

BBC Weather's average conditions for San José, Costa Rica. This includes readings of average sunlight, temperature, discomfort from heat and humidity, relative humidity, average Precipitation, and wet days

month avg. sunlight (hours) temp. (°C) discomfort from heat and humidity relative humidity avg. monthly prec. (mm) wet days (+0.25 mm)
avg. record
min max min max am pm
jan 7 14 24 9 31 moderate 83 63 15 3
feb 8 14 24 11 31 moderate 82 57 5 1
mar 8 15 26 10 33 moderate 81 55 20 2
apr 7 17 26 12 32 medium 80 60 46 7
may 5 17 27 12 31 medium 85 70 229 19
jun 4 17 26 14 33 medium 91 74 241 22
jul 4 17 25 12 29 medium 89 74 211 23
aug 4 16 26 13 29 medium 89 73 241 24
sep 5 16 26 13 30 medium 91 76 305 24
oct 4 16 25 13 29 medium 92 78 300 25
nov 5 16 25 11 29 medium 87 71 145 14
dec 6 14 24 9 31 moderate 85 67 41 6
SOURCE: BBC Weather

historical weather chart for Puntarenas, Costa Rica

Puntarenas is closer to Jacó (45 km northwest along the same coast), and as such their weather conditions are very similar.

The chart on the right provides a 30 year averaged perspective on aspects of Puntarenas weather conditions (note that the mean monthly temperature is the average of the mean min. and max. temperatures).

month mean temp.
(°C)
mean monthly rainfall
(mm)
mean monthly wind speed
(m/s)
jan 26.8 5.8 1.8
feb 27.7 2.3 2.0
mar 28.3 5.9 1.9
apr 28.6 29.6 1.8
may 27.7 195.6 1.6
jun 26.9 231.0 1.3
jul 26.7 181.7 1.3
aug 26.5 235.1 1.3
sep 26.3 311.3 1.3
oct 26.3 256.6 1.3
nov 26.4 116.9 1.2
dec 26.5 31.7 1.5