January weather forecast
Puerto Jiménez, Costa Rica

The opening month in Puerto Jiménez, Costa Rica presents a warm start to the year. January witnesses a drier period compared to December and acts as a prelude to a slight rise in temperature observed in February. Despite the humidity level of around 77%, there is a fair balance of sun and cloud with the average daily cloud coverage at 21%. The brightness of January is complemented by the average wind speed recorded between 5.4km/h (3.4mph) as baseline and reaching peaks up to 8.6km/h (5.3mph). Transitioning from January to February, the cool northern breeze adds a certain contrast to the warmth, marking a balanced and enjoyable weather spectrum.

Temperature

The transition into January notes an average high-temperature of a still warm 29.8°C (85.6°F), revealing a mild distinction from the 28.6°C (83.5°F) in December. During January, Puerto Jiménez's temperature averages to an agreeable 20.5°C (68.9°F) at night.

Heat index

In January, the heat index is evaluated at a torrid 36°C (96.8°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In January, the average relative humidity in Puerto Jiménez is 77%.

Rainfall

In Puerto Jiménez, in January, during 17.4 rainfall days, 59mm (2.32") of precipitation is typically accumulated. In Puerto Jiménez, Costa Rica, during the entire year, the rain falls for 309.5 days and collects up to 2106mm (82.91") of precipitation.

Daylight

The average length of the day in January in Puerto Jiménez is 11h and 41min.
On the first day of January in Puerto Jiménez, sunrise is at 05:47 and sunset at 17:25. On the last day of the month, sunrise is at 05:53 and sunset at 17:39 CST.

Sunshine

In January, the average sunshine in Puerto Jiménez, Costa Rica, is 9.5h.

UV index

The months with the lowest UV index are January, February, June through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 6 suggests this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.