January weather forecastRio Uaçá, Brazil
January
Weather in January
January, like December, in Rio Uaçá, Brazil, is another warm winter month, with temperature in the range of an average low of 22.1°C (71.8°F) and an average high of 28.3°C (82.9°F).Temperature
At the start of January, Rio Uaçá's average high-temperature reaches a still warm 28.3°C (82.9°F), subtly different from the preceding month. Rio Uaçá's temperature in January lowers to a consistent average of 22.1°C (71.8°F) during the nights.Heat index
The average heat index in January is calculated to be a hot 34°C (93.2°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in January is 88%.Rainfall
In Rio Uaçá, in January, it is raining for 28.6 days, with typically 126mm (4.96") of accumulated precipitation. Throughout the year, there are 280.4 rainfall days, and 1281mm (50.43") of precipitation is accumulated.Daylight
The average length of the day in January is 11h and 56min.On the first day of the month, sunrise is at 06:31 and sunset at 18:26. On the last day of January, sunrise is at 06:39 and sunset at 18:37 -03.
Sunshine
In January, the average sunshine is 5.2h.UV index
January through June and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 6 in January leads to these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Rio Uaçá, Brazil
- Average high temperature in January: 28.3°C
The warmest month (with the highest average high temperature) is October (33.9°C).
The month with the lowest average high temperature is February (27.8°C).
- Average low temperature in January: 22.1°C
The month with the highest average low temperature is April (22.5°C).
The coldest month (with the lowest average low temperature) is July (21.5°C).
Average pressure in January
Rio Uaçá, Brazil
- Average pressure in January: 1011.7mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in January
Rio Uaçá, Brazil
- Average wind speed in January: 5.7km/h
The windiest month (with the highest average wind speed) is October (6.2km/h).
The calmest month (with the lowest average wind speed) is June (4.3km/h).
Average humidity in January
Rio Uaçá, Brazil
- Average humidity in January: 88%
The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
Rio Uaçá, Brazil
- Average rainfall in January: 126mm
The wettest month (with the highest rainfall) is May (215mm).
The driest month (with the least rainfall) is October (20mm).
Average rainfall days in January
Rio Uaçá, Brazil
- Average rainfall days in January: 28.6 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is October (10.9 days).
Average daylight in January /
Average sunshine in January
Rio Uaçá, Brazil
- Average daylight in January: 11h and 54min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in January: 5h and 12min
The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in January
Rio Uaçá, Brazil
- Average sunshine days in January: 1.5 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is April (0.5 days).
Average UV index in January
Rio Uaçá, Brazil
- Average UV index in January: 6
The months with the highest UV index are July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and December (UV index 6).
Average cloud cover in January
Rio Uaçá, Brazil
- Average cloud cover in January: 70
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is October (Cloud cover 45).
Average visibility in January
Rio Uaçá, Brazil
- Average visibility in January: 6km
The months with the highest visibility are September, October and November (7km).
The months with the lowest visibility are January, February, March, April, May, June, July, August and December (6km).
