January weather forecast
Cañas, Costa Rica

January in Cañas, Costa Rica, is a tropical winter month, with an average temperature varying between 21°C (69.8°F) and 31.4°C (88.5°F).

Temperature

Cañas, Costa Rica, notes an average high-temperature of a tropical 31.4°C (88.5°F) in January, hardly diverging from December. Cañas's average low-temperature in January is measured at a pleasant 21°C (69.8°F).

Heat index

For January, the heat index is calculated to be a torrid 39°C (102.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Cañas, the average relative humidity in January is 70%.

Rainfall

In Cañas, in January, it is raining for 4.2 days, with typically 8mm (0.31") of accumulated precipitation. Throughout the year, in Cañas, there are 236.6 rainfall days, and 1996mm (78.58") of precipitation is accumulated.

Daylight

In Cañas, the average length of the day in January is 11h and 36min.
On the first day of the month, sunrise is at 05:57 and sunset at 17:29. On the last day of January, in Cañas, sunrise is at 06:03 and sunset at 17:44 CST.

Sunshine

In January, the average sunshine is 7.6h.

UV index

January through September and December, with an average maximum UV index of 7, are months with the highest UV index in Cañas. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in January interprets into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.