January weather forecast
Liberia, Costa Rica

During January in Liberia, Costa Rica, the weather is steadily warm. Relative humidity registers a lower than average value of 71%, allowing both locals and visitors to enjoy minimal discomfort and outdoor activities. Casual breezes, visible sunny skies due to lower cloud coverage provides a pleasant atmosphere. While rainfall prevails moderately, the UV Index remains steady, advocating protective measures during sun exposure. Temperatures vary from a low of 22°C (71.6°F) to a high of 30.8°C (87.4°F) suggesting it is vital to stay hydrated.

Temperature

The shift into January finds Liberia at an average high-temperature of a hot 30.8°C (87.4°F), closely comparable to December's conditions. An average low-temperature of 22°C (71.6°F) is observed during the January nights.

Heat index

During January, the heat index is estimated at a very hot 37°C (98.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In January, the average relative humidity is 71%.

Rainfall

In January, the rain falls for 2.1 days. Throughout January, 4mm (0.16") of precipitation is accumulated. In Liberia, during the entire year, the rain falls for 188.5 days and collects up to 1202mm (47.32") of precipitation.

Daylight

In Liberia, the average length of the day in January is 11h and 35min.
On the first day of the month, sunrise is at 05:59 and sunset at 17:30. On the last day of January, in Liberia, sunrise is at 06:04 and sunset at 17:45 CST.

Sunshine

The months with the least sunshine are January and October, with an average of 7.6h of sunshine.

UV index

The months with the highest UV index are January through October and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A daily high UV index of 7 in January leads to these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.