January weather forecast
Sabalito, Costa Rica

January, the same as December, is another warm winter month in Sabalito, Costa Rica, with an average temperature ranging between max 29.8°C (85.6°F) and min 20.5°C (68.9°F).

Temperature

January's arrival registers an average high-temperature of a still warm 29.8°C (85.6°F), closely aligning with the temperature of the previous month. January's nights observe an average temperature of 20.5°C (68.9°F).

Heat index

For most parts of January, the heat index is evaluated at a torrid 36°C (96.8°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The average relative humidity in January in Sabalito is 77%.

Rainfall

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

Daylight

In Sabalito, the average length of the day in January is 11h and 41min.
On the first day of the month, sunrise is at 05:46 and sunset at 17:23. On the last day of January, sunrise is at 05:52 and sunset at 17:37 CST.

Sunshine

In Sabalito, the average sunshine in January is 9.5h.

UV index

The months with the lowest UV index in Sabalito are January, February, June through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, a regular UV index of 6 translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.