January weather forecastCastelar, Argentina
January weather forecast for Castelar, Argentina: In January, the average heat index, which takes the relative humidity and factors it into the air temperature reading, is calculated to be 34°C (93.2°F). January in Castelar, Argentina, is a hot summer month, with an average temperature ranging between min 19.4°C (66.9°F) and max 31.3°C (88.3°F).
January
Weather in January
January in Castelar, Argentina, is a hot summer month, with an average temperature ranging between min 19.4°C (66.9°F) and max 31.3°C (88.3°F).Temperature
January proves to be the warmest month, recording an average peak temperature of 31.3°C (88.3°F) and a minimum temperature of 19.4°C (66.9°F).Heat index
The heat index for January is calculated to be a hot 34°C (93.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Note that heat index values are valued for light wind and location in the shade. 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', determines the feeling of heat when you account for the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
With an average relative humidity of 55%, January is the least humid month in Castelar.Rainfall
In January, the rain falls for 5.2 days. Throughout January, 9mm (0.35") of precipitation is accumulated. In Castelar, Argentina, during the entire year, the rain falls for 69.2 days and collects up to 143mm (5.63") of precipitation.Daylight
The average length of the day in January is 14h and 10min.On the first day of January, sunrise is at 05:44 and sunset at 20:10. On the last day of the month, sunrise is at 06:13 and sunset at 20:02 -03.
Sunshine
In January, the average sunshine is 10.5h.UV index
With an average maximum UV index of 7, January is the month with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 7 in January leads to these recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Castelar, Argentina
- Average high temperature in January: 31.3°C
The warmest month (with the highest average high temperature) is January (31.3°C).
The month with the lowest average high temperature is July (13.9°C).
- Average low temperature in January: 19.4°C
The month with the highest average low temperature is January (19.4°C).
The coldest month (with the lowest average low temperature) is July (7.4°C).
Average pressure in January
Castelar, Argentina
- Average pressure in January: 1011.8mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in January
Castelar, Argentina
- Average wind speed in January: 13.6km/h
The windiest month (with the highest average wind speed) is September (15.4km/h).
The calmest month (with the lowest average wind speed) is March (12.7km/h).
Average humidity in January
Castelar, Argentina
- Average humidity in January: 55%
The months with the highest relative humidity are May and July (76%).
The month with the lowest relative humidity is January (55%).
Average rainfall in January
Castelar, Argentina
- Average rainfall in January: 9mm
The wettest month (with the highest rainfall) is October (22mm).
The driest month (with the least rainfall) is September (5mm).
Average rainfall days in January
Castelar, Argentina
- Average rainfall days in January: 5.2 days
The months with the highest number of rainy days are April and October (6.8 days).
The month with the least rainy days is August (4.1 days).
Average daylight in January /
Average sunshine in January
Castelar, Argentina
- Average daylight in January: 14h and 12min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in January: 10h and 30min
The month with the most sunshine is December (Average sunshine: 11h and 18min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in January
Castelar, Argentina
- Average sunshine days in January: 24.3 days
The month with the most sunshine days is August (25.1 days).
The month with the least sunshine days is February (20.6 days).
Average UV index in January
Castelar, Argentina
- Average UV index in January: 7
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in January
Castelar, Argentina
- Average cloud cover in January: 16
The month with the most cloud cover is July (Cloud cover 36).
The month with the least cloud cover is January (Cloud cover 16).
Average visibility in January
Castelar, Argentina
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).





