January weather forecastJari, Brazil

January

Weather in January

January in Jari, Brazil, is a tropical summer month, with an average temperature ranging between max 30.3°C (86.5°F) and min 19.3°C (66.7°F).

Temperature

With its high average temperature of 30.3°C (86.5°F) and a low of 19.3°C (66.7°F), January is regarded as the warmest month.

Heat index

In January, the heat index is estimated at a torrid 37°C (98.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in January in Jari is 73%.

Rainfall

In January, in Jari, the rain falls for 17.5 days. Throughout January, 130mm (5.12") of precipitation is accumulated. Throughout the year, there are 160.8 rainfall days, and 1177mm (46.34") of precipitation is accumulated.

Daylight

In Jari, Brazil, the average length of the day in January is 13h and 46min.
On the first day of January, sunrise is at 05:40 and sunset at 19:39. On the last day of the month, sunrise is at 06:05 and sunset at 19:34 -03.

Sunshine

The average sunshine in January in Jari, Brazil, is 8.5h.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the maximum UV index of 6 transforms into these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Jari, Brazil, registers the average highest temperatures during January, with peaks of 30.3°C (86.5°F) and lows of 19.3°C (66.7°F).

In Jari, 30.3°C (86.5°F) is the average high-temperature and 19.3°C (66.7°F) is the average low-temperature during January. The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in January is estimated at 37°C (98.6°F).

The average relative humidity in January is 73%.

In Jari, Brazil, in January, it is raining for 17.5 days, with typically 130mm (5.12") of accumulated precipitation.

In January, the average day length in Jari is 13h and 46min.

On the first day of January, sunrise is at 05:40 and sunset at 19:39. On the last day of the month, sunrise is at 06:05 and sunset at 19:34 -03.

The average sunshine duration in January in Jari is 8.5h.

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index in Jari.

In January, the average daily maximum UV index in Jari, Brazil, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

29.5°C

30.3°C

29.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.1km/h

12.6km/h

11.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

13.9

12.5

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Jari, Brazil

Average high temperature in January: 30.3°C

The warmest month (with the highest average high temperature) is January (30.3°C).
The month with the lowest average high temperature is July (17.5°C).

Average low temperature in January: 19.3°C

The months with the highest average low temperature are January and February (19.3°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).

Average pressure in January
Jari, Brazil

Average pressure in January: 1010.5mbar

The month with the highest atmospheric pressure is July (1018.7mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).

Average wind speed in January
Jari, Brazil

Average wind speed in January: 11.7km/h

The windiest month (with the highest average wind speed) is August (13.9km/h).
The calmest month (with the lowest average wind speed) is April (10.8km/h).

Average humidity in January
Jari, Brazil

Average humidity in January: 73%

The month with the highest relative humidity is June (85%).
The month with the lowest relative humidity is December (71%).

Average rainfall in January
Jari, Brazil

Average rainfall in January: 130mm

The wettest month (with the highest rainfall) is October (132mm).
The driest month (with the least rainfall) is August (55mm).

Average rainfall days in January
Jari, Brazil

Average rainfall days in January: 17.5 days

The month with the highest number of rainy days is January (17.5 days).
The month with the least rainy days is August (10.9 days).

Average daylight in January /
Average sunshine in January
Jari, Brazil

Average daylight in January: 13h and 48min

The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).

Average sunshine in January: 8h and 30min

The month with the most sunshine is December (Average sunshine: 8h and 48min).
The months with the least sunshine are May and June (Average sunshine: 7h and 6min).

Average sunshine days in January
Jari, Brazil

Average sunshine days in January: 12.5 days

The month with the most sunshine days is August (19.5 days).
The month with the least sunshine days is February (11 days).

Average UV index in January
Jari, Brazil

Average UV index in January: 6

The months with the highest UV index are January, February, March, November and December (UV index 6).
The month with the lowest UV index is May (UV index 3).

Average cloud cover in January
Jari, Brazil

Average cloud cover in January: 31

The month with the most cloud cover is May (Cloud cover 40).
The month with the least cloud cover is November (Cloud cover 26).

Average visibility in January
Jari, Brazil

Average visibility in January: 9km

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).