January weather forecast
Juntas, Costa Rica

January is a tropical winter month in Juntas, Costa Rica, with temperature in the range of an average high of 30.8°C (87.4°F) and an average low of 21.9°C (71.4°F).

Temperature

Juntas's entry into January measures an average high-temperature of a hot 30.8°C (87.4°F), closely parallel to the preceding month. During the month of January, Juntas experiences a steady low-temperature average of 21.9°C (71.4°F).

Heat index

January's average heat index is estimated at a very hot 36°C (96.8°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in January is 68%.

Rainfall

In Juntas, in January, during 3.8 rainfall days, 4mm (0.16") of precipitation is typically accumulated. In Juntas, during the entire year, the rain falls for 218.6 days and collects up to 1456mm (57.32") of precipitation.

Daylight

The average length of the day in January is 11h and 36min.
On the first day of January, sunrise is at 05:57 and sunset at 17:29. On the last day of the month, sunrise is at 06:02 and sunset at 17:43 CST.

Sunshine

In January, the average sunshine in Juntas is 8.3h.

UV index

The months with the highest UV index are January through September and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 7 during January translates into the following directions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.