January weather forecast
San Cristóbal, Nicaragua

January, the same as December, in San Cristóbal, Nicaragua, is another hot winter month, with an average temperature ranging between max 31.4°C (88.5°F) and min 21.4°C (70.5°F).

Temperature

San Cristóbal marks the start of January with an average high-temperature of a still tropical 31.4°C (88.5°F), hinting at a slight fluctuation from December's 30.2°C (86.4°F). San Cristóbal reports a consistent average low-temperature of 21.4°C (70.5°F) throughout January nights.

Heat index

In January, the average heat index is appraised at a torrid 38°C (100.4°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in January is 67%.

Rainfall

The month with the least rainfall is January, when the rain falls for 2.8 days and typically collects 2mm (0.08") of precipitation.

Daylight

In January, the average length of the day is 11h and 31min.
On the first day of January, sunrise is at 06:05 and sunset at 17:32. On the last day of the month, sunrise is at 06:10 and sunset at 17:47 CST.

Sunshine

January has the least sunshine of the year in San Cristóbal, with an average of 7.3h of sunshine.

UV index

The months with the highest UV index in San Cristóbal are January through September, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: In January, the average maximum UV index of 7 translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.