January weather forecast
Formosa do Rio Preto, Brazil

January, like December, is another tropical summer month in Formosa do Rio Preto, Brazil, with temperature in the range of an average high of 30.3°C (86.5°F) and an average low of 19.6°C (67.3°F).

Temperature

Formosa do Rio Preto experiences a transition to a still hot 30.3°C (86.5°F) in average high-temperatures with the arrival of January, not greatly differing from December's 31.3°C (88.3°F). During January nights, Formosa do Rio Preto records an average temperature of 19.6°C (67.3°F).

Heat index

Throughout January, the heat index is calculated to be a very hot 38°C (100.4°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Formosa do Rio Preto, the average relative humidity in January is 78%.

Rainfall

In January, in Formosa do Rio Preto, Brazil, the rain falls for 19.3 days. Throughout January, 91mm (3.58") of precipitation is accumulated. In Formosa do Rio Preto, during the entire year, the rain falls for 134.3 days and collects up to 578mm (22.76") of precipitation.

Daylight

The average length of the day in January is 12h and 41min.
On the first day of January, sunrise is at 05:41 and sunset at 18:26. On the last day of the month, sunrise is at 05:56 and sunset at 18:31 -03.

Sunshine

The average sunshine in January in Formosa do Rio Preto is 9.6h.

UV index

The months with the lowest UV index are January through July, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 6 in January leads to these recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.