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Costa Rica Weather

Costa Rica 3D view  Costa Rica is located geographically only about eight degrees of north latitude of the equatorial line, thus Costa Rican climate is tropical all year round. However, because of the extraordinarily diverse amount of involved factors, the resulting country climate is a set of regional sub-climates. Therefore, the tropical weather of Costa Rica is greatly affected by its geography at the very local level. These factors include the totally heterogeneous relief (ranging from 0 to 3,431 m in only 51,100 km²) and the way as all its components (mountains, volcanoes, plains, valleys and plateaus) are distributed; the situation in respect to the two continental masses as American isthmus; the influence of the Pacific and Atlantic Oceans (sea winds and ocean current with their own temperatures, besides low pressure systems, tropical depressions, tropical storms and hurricanes) and the general atmospheric circulation.

(En Español: Clima de Costa Rica)

Current Weather of Costa Rica - Updated Satellite Image

Latest Image - GOES-13 1 km (only VISible, unavailable on night). Updates each 10 min.
Based on Costa Rica satellite images thanks to RAMMB and CIRA programs (Colorado State University).
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* As the image time is Universal Time Coordinated or UTC (as before with GMT), subtract 6 h to get Costa Rica time.

Costa Rica
Location: 9°55'N 84°4'W (At the center of America, in the American Isthmus).
Subdivisions: Provinces: 7, Cantons: 81, Districts: 473
Area: 51,100 km² (19,730 sq mi) | Population: 4,563,539 (2010)

Main Climatic Subdivisions:
Rainfall Regions (Drainage Basins Systems):
     Pacific: Dry and rainy period well defined. The dry one is from December to April.
     Caribbean: Dry period is not well defined (less rainy months have 100-200 mm of rainfall.
Climatic Regions:
     Northern Pacific, Central Pacific, Southern Pacific, Central Region, Northern Zone, Northern Caribbean and Southern Caribbean

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The only Official Information and Current Weather Reports in Costa Rica are from Instituto Meteorológico Nacional (National Weather Institute)
Cloudy & Rainy Conditions Suscribe to Costa Rica weather Atom feeds See its Current Weather and Forecast Report (In spanish, but is a graphically eloquent animated map report):
Saturday 19 June 2021 ☀ | ☀ ⛅ | ✧☽ ☁
Partly cloudy to Cloudy | Isolated Rain

This Saturday in Costa Rica the scattered behavior of rainfall is maintained, mainly concentrated in the mountains and the Pacific regions. However, an increase in the moisture content in the atmosphere will cause these rains to be more intense compared to Thursday. In addition, during the early morning and early hours of the day, isolated weak rains are possible on the coasts of the national territory.

Dawning:
Central Valley: Partly cloudy. Possible showers to the east.
North Pacific: Partly cloudy.
Central Pacific: Partly cloudy. Possible rains on the coast.
South Pacific: Partly cloudy. Possible rains on the coast.
North Caribbean: Partial to mostly cloudy with variable scattered rains.
South Caribbean: Partial to mostly cloudy with variable scattered rains.
North Zone: Partial to mostly cloudy with variable scattered rains.

Morning:
Central Valley: Partly cloudy. Possible showers to the east.
North Pacific: Partly cloudy.
Central Pacific: Partly cloudy. . Possible rains on the coast.
South Pacific: Partly cloudy. . Possible rains on the coast.
North Caribbean: Partial to mostly cloudy with variable scattered rains.
South Caribbean: Partial to mostly cloudy with variable scattered rains.
North Zone: Partial to mostly cloudy with variable scattered rains.

Afternoon:
Central Valley: From partly cloudy to cloudy. Isolated rains and thunderstorms.
North Pacific: Partly cloudy with isolated rains and downpours in the peninsula.
Central Pacific: Mostly cloudy with rains and thunderstorms.
South Pacific: Mostly cloudy with rains and thunderstorms.
North Caribbean: Partly cloudy. Rains and downpours in the mountains.
South Caribbean: Partly cloudy. Rains and downpours in the mountains.
North Zone: Partly cloudy to cloudy.

Evening:
Central Valley: Partly cloudy, possible rains in first hours.
North Pacific: Partly cloudy.
Central Pacific: Partly cloudy with rains.
South Pacific: Partly cloudy with rains.
North Caribbean: Variable cloudiness. Isolated rains.
South Caribbean: Variable cloudiness. Isolated rains.
North Zone: Variable cloudiness. Isolated rains.
Temperatures in Costa Rica

Temperatures (Max/Min ºC):
San José 24.6/17.0 | Alajuela 30.0/18.0 | Cartago 24.9/14.0 | Heredia 24.8/18.9 | Puntarenas 33.0/22.9 | Liberia 34.0/22.8 | Nicoya 31.3/23.2 | Bagaces 33.0/22.6 | Quepos 33.0/21.5 | Parrita 32.9/20.4 | Golfito 28.8/23.6 | Isla del Coco 26.9/20.5 | San Isidro de El General 25.0/21.0 | Guápiles 28.8/20.9 | Tortuguero 27.5/21.6 | Limón 30.7/20.7 | Sixaola 31.7/23.4 | Ciudad Quesada 26.7/17.9 | Upala 29.6/23.3 | Sarapiquí 28.9/23.1 |

Source: Gabriela Chinchilla (Meteorologist) - Instituto Meteorológico Nacional (IMN)


Costa Rica Weekly Weather Forecast (12 - 15 September 2019)

Instituto Meteorológico Nacional (IMN)

Suscribe to Costa Rica weather Atom feed, weekly forecast included

Partly cloudy to Cloudy | Rain | Rainy Season
 This week the proximity of the Intertropical Convergence Zone along with the passage of tropical wave #33 from Friday night, will be generating very rainy conditions during this weekend in Costa Rica.

Due to the effects of the tropical wave, the most intense rains of the weekend will be on Saturday, September 14. The rains will begin to appear from the early hours of the morning, mainly in the Caribbean and the South Pacific.

Source: Instituto Meteorológico Nacional (IMN) - (Costa Rica National Weather Institute)


Costa Rica Weather in the month of December 2020

Monthly Weather Characterization from IMN

Suscribe to Costa Rica weather Atom feed, monthly information included


 December is characterized by Trade winds and the consolidation of the dry season in the Central Valley and the North Pacific, as well as a pattern of rains in the Caribbean regions and the North Zone. The dry season in the Pacific originated and maintains the Tropical Dry Forest) in the northwestern part of the country.

However, this year 2020, due to "la Niña" meteorological phenomenon, there was an extension of the rainy season, ending even until the second week of the month, in the Central Valley.

Source: Instituto Meteorológico Nacional (IMN) - (Costa Rica National Weather Institute)


Current Oceanic Influence (19 June 2021)

USA National Hurricane Center Official Advises

19 June 2021, 20:45 UTC
No Significant Climatic Disturbances
 The oceanic surroundings of Costa Rica remain with no significant climatic disturbances in this moment.

There are not significant climatic disturbances at this time.
Latest Satellite photograph of Central America (19 June 2021).
NOAA - National Weather Service

There are not significant climatic disturbances for Costa Rica.
Latest Satellite animation of Central America and oceanic surroundings (19 June 2021).
NOAA - National Weather Service

Sources: NASA / USA National Hurricane Center - NOAA / National Weather Service


Costa Rica Weather, General Description

 The seasons of Costa Rica climate are defined by the amount of rain that falls during a particular period of time. The year can be easily divided into two main periods or seasons, named by the local residents as "Verano", summer and "Invierno", winter. The "Verano" season is from December to April, and is the time of the year when there are more blue skies and few rains. The "Invierno" is the rainy period, from May to November, and during this time, in most locations, it rains constantly; with sunny mornings, sometimes cool, sometimes sweltering, and the rain coming during the first hours of afternoon.

The maximum rain quantity received is at the Northeastern lowlands, the Caribbean, near the Orosi Valley, Arenal and Monteverde areas, Talamanca Range, Osa Peninsula and Golfito (Southern Pacific) (annual rainfall of over 5,000 mm). Humidity is also higher on the Caribbean side than on the Pacific. The mean annual temperature on the coastal lowlands is around 80 °F (27 °C), 69 °F (21 °C) in the main populated areas of the Central Cordillera, and below 50 °F (10 °C) on the summits of the highest mountains. In the highest areas of Irazú Volcano (3,431 m) and Chirripó (3,810 m), temperatures sometimes can drop below 0 ºC during the end and beginning of the year.

The driest season of Costa Rica in most places is from December to April, while the rainy season is from May to November. On the Caribbean coast, however, December is by far the more wet month. The highlands areas are always cooler. The lowest elevation level in the country is the Pacific Ocean at sea level, the highest point is Cerro Chirripó, a somewhen glaciated mountain with an elevation of 3,810 m (part of Chirripó National Park). Even on a clear day, it is possible to see both the Caribbean Sea and the Pacific Ocean from the top.

Weather related Books

This is a selection of recommended and suggested books for further reading and learning about weather and climate; which are available for look at their reader reviews and buying online if needed (* As a form to support this website, we are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites).

Notes & References:
1
- The standard air pressure at sea level in millibars is 1013.25 mba, which is the value of 1 atmosphere, or 1013.25 hPa in IS units (1 mba = 1 hPa).
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