January, the same as
December, is another warm summer month in
Iguape,
Brazil, with temperature in the range of an average high of 29.4°C (84.9°F) and an average low of 21.5°C (70.7°F).
Temperature
The commencement of January introduces an average high-temperature of a still warm 29.4°C (84.9°F), closely mirroring the preceding month. An average nighttime temperature of 21.5°C (70.7°F) is recorded during January.
Heat index
For January, the heat index is appraised at a sweltering 37°C (98.6°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The average relative humidity in January is 82.6%.
Rainfall
In Iguape, in January, during 13 rainfall days, 243mm (9.57") of precipitation is typically accumulated. Throughout the year, in Iguape, there are 136 rainfall days, and 1976mm (77.8") of precipitation is accumulated.
Sea temperature
In January, the average sea temperature in Iguape, Brazil, is 26.7°C (80.1°F).
Note: For swimming, diving, or other water activities, the temperature range of 25°C (77°F) to 29°C (84.2°F) is perceived as exceptionally enjoyable and comfortable even for prolonged periods.
Daylight
In January, the average length of the day in Iguape is 13h and 28min.
On the first day of the month, sunrise is at 05:24 and sunset at 19:02. On the last day of January, sunrise is at 05:46 and sunset at 19:00 -03.
Sunshine
January has the most sunshine of the year in Iguape, with an average of 5.2h of sunshine.