January weather forecast
Sullana, Peru

Steadily following December's climatic pattern, January's conditions in Sullana, Peru uphold a warm and moderately humid period. The season magnifies Sullana's tropical climate with temperatures extensively reaching their peak. A slight rise to 31.8°C (89.2°F) in day temperatures and 23°C (73.4°F) in night temperatures ensures a thermic trip. Bright conditions dictate throughout with a UV index of 7, hoisting outdoor activities. On average, 16mm (0.63") of precipitation gets recorded across eight days, marking the onset of Sullana's torrential rainfall periods.

Temperature

January's onset records a minor alteration in the average high-temperature to a still tropical 31.8°C (89.2°F) from December's 30.8°C (87.4°F). In Sullana, January nights cool down to an average of 23°C (73.4°F).

Heat index

In January, the average heat index is estimated at a fiery hot 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Sullana, the average relative humidity in January is 62%.

Rainfall

In January, the rain falls for 8.4 days. Throughout January, 16mm (0.63") of precipitation is accumulated. Throughout the year, in Sullana, there are 69 rainfall days, and 158mm (6.22") of precipitation is accumulated.

Daylight

In Sullana, the average length of the day in January is 12h and 22min.
On the first day of the month, sunrise is at 06:14 and sunset at 18:38. On the last day of January, sunrise is at 06:26 and sunset at 18:45 -05.

Sunshine

In January, the average sunshine is 8.4h.

UV index

January through May and December, with an average maximum UV index of 7, are months with the highest UV index in Sullana. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 7 in January transforms into this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.