Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The start of January marks an average high-temperature of a still hot 33°C (91.4°F), hardly distinguishable from the conditions in December. Petrolina records a mean low-temperature of 22.3°C (72.1°F) in January.Heat index
The heat index value for January is appraised at a very hot 39°C (102.2°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
The average relative humidity in January in Petrolina is 59%.Rainfall
In Petrolina, in January, it is raining for 10.3 days, with typically 36mm (1.42") of accumulated precipitation. Throughout the year, in Petrolina, there are 84.6 rainfall days, and 295mm (11.61") of precipitation is accumulated.Daylight
In Petrolina, the average length of the day in January is 12h and 36min.On the first day of the month, sunrise is at 05:25 and sunset at 18:05. On the last day of January, sunrise is at 05:39 and sunset at 18:10 -03.
Sunshine
January has the most sunshine of the year, with an average of 10.7h of sunshine.UV index
January through April, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: In January, the maximum UV index of 7 transforms into these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
How hot is it in Petrolina in January?
What is the average humidity in January in Petrolina?
How much does it rain in Petrolina in January?
What is the average length of the day in January in Petrolina?
What time are sunrise and sunset in January in Petrolina?
What month has the most sunshine in Petrolina?
How many hours of sunshine does Petrolina have in January?
When is the highest UV index in Petrolina?
How high is the UV index in January in Petrolina?
Average temperature in January
Petrolina, Brazil
- Average high temperature in January: 33°C
The warmest month (with the highest average high temperature) is November (34.1°C).
The month with the lowest average high temperature is July (29.4°C).
- Average low temperature in January: 22.3°C
The month with the highest average low temperature is November (23.5°C).
The coldest month (with the lowest average low temperature) is August (18.9°C).
Average pressure in January
Petrolina, Brazil
- Average pressure in January: 1011.9mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in January
Petrolina, Brazil
- Average wind speed in January: 16km/h
The windiest month (with the highest average wind speed) is September (23.1km/h).
The calmest month (with the lowest average wind speed) is March (14.2km/h).
Average humidity in January
Petrolina, Brazil
- Average humidity in January: 59%
The months with the highest relative humidity are April, May and June (65%).
The month with the lowest relative humidity is November (49%).
Average rainfall in January
Petrolina, Brazil
- Average rainfall in January: 36mm
The wettest month (with the highest rainfall) is December (56mm).
The driest months (with the least rainfall) are August and September (1mm).
Average rainfall days in January
Petrolina, Brazil
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is March (14.5 days).
The month with the least rainy days is September (1.1 days).
Average daylight in January /
Average sunshine in January
Petrolina, Brazil
- Average daylight in January: 12h and 4min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in January: 10h and 4min
The month with the most sunshine is January (Average sunshine: 10h and 42min).
The month with the least sunshine is July (Average sunshine: 7h and 24min).
Average sunshine days in January
Petrolina, Brazil
- Average sunshine days in January: 19.9 days
The month with the most sunshine days is September (26.6 days).
The month with the least sunshine days is March (15.2 days).
Average UV index in January
Petrolina, Brazil
- Average UV index in January: 7
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 6).
Average cloud cover in January
Petrolina, Brazil
- Average cloud cover in January: 33
The months with the most cloud cover are May and June (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 22).
Average visibility in January
Petrolina, Brazil
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Petrolina, Brazil
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