January weather forecast
Japomirim, Brazil

January, like December, is another hot summer month in Japomirim, Brazil, with an average temperature fluctuating between 30.2°C (86.4°F) and 19.5°C (67.1°F).

Temperature

Japomirim registers an average high-temperature of a still hot 30.2°C (86.4°F) with the arrival of January, showing minor deviation from the preceding month. An average low-temperature of 19.5°C (67.1°F) is observed during the January nights.

Heat index

The heat index value for January is calculated to be a sweltering 39°C (102.2°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Heat index readings emphasize conditions of light breezes and shaded spots. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
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. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in January is 82%.

Rainfall

In Japomirim, during January, the rain falls for 19.6 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 241.8 rainfall days, and 524mm (20.63") of precipitation is accumulated.

Daylight

In Japomirim, the average length of the day in January is 12h and 51min.
On the first day of the month, sunrise is at 05:13 and sunset at 18:10. On the last day of January, sunrise is at 05:30 and sunset at 18:14 -03.

Sunshine

January and February, with an average of 8.1h of sunshine, are months with the most sunshine in Japomirim.

UV index

The months with the highest UV index are January through May, September through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 6 during January translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.