January weather forecastCastillos, Uruguay
January
Weather in January
January, the same as December, is a moderately hot summer month in Castillos, Uruguay, with an average temperature fluctuating between 18.1°C (64.6°F) and 28.1°C (82.6°F).Temperature
January, having an average high-temperature of 28.1°C (82.6°F) and an average low-temperature of 18.1°C (64.6°F), is the warmest month.Heat index
The heat index value for January is appraised at a hot 31°C (87.8°F). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including 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 frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The least humid month is January, with an average relative humidity of 68%.Rainfall
In January, the rain falls for 10 days. Throughout January, 46mm (1.81") of precipitation is accumulated. In Castillos, during the entire year, the rain falls for 129.5 days and collects up to 692mm (27.24") of precipitation.Daylight
In Castillos, the average length of the day in January is 14h and 8min.On the first day of January, sunrise is at 05:27 and sunset at 19:50. On the last day of the month, sunrise is at 05:55 and sunset at 19:42 -03.
Sunshine
With an average of 10.5h of sunshine, January has the most sunshine of the year.UV index
January through March and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 6 in January interprets into the following advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. 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 provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Castillos, Uruguay
- Average high temperature in January: 28.1°C
The warmest month (with the highest average high temperature) is January (28.1°C).
The month with the lowest average high temperature is July (14.6°C).
- Average low temperature in January: 18.1°C
The month with the highest average low temperature is February (18.3°C).
The coldest month (with the lowest average low temperature) is July (7.9°C).
Average pressure in January
Castillos, Uruguay
- Average pressure in January: 1012.6mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in January
Castillos, Uruguay
- Average wind speed in January: 16.7km/h
The windiest month (with the highest average wind speed) is September (17.6km/h).
The calmest month (with the lowest average wind speed) is May (14.7km/h).
Average humidity in January
Castillos, Uruguay
- Average humidity in January: 68%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (68%).
Average rainfall in January
Castillos, Uruguay
- Average rainfall in January: 46mm
The wettest month (with the highest rainfall) is August (84mm).
The driest month (with the least rainfall) is March (45mm).
Average rainfall days in January
Castillos, Uruguay
- Average rainfall days in January: 10 days
The months with the highest number of rainy days are March and October (12 days).
The month with the least rainy days is June (9.1 days).
Average daylight in January /
Average sunshine in January
Castillos, Uruguay
- Average daylight in January: 14h and 6min
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 January (Average sunshine: 10h and 30min).
The month with the least sunshine is July (Average sunshine: 5h and 24min).
Average sunshine days in January
Castillos, Uruguay
- Average sunshine days in January: 19.4 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is February (15.3 days).
Average UV index in January
Castillos, Uruguay
- Average UV index in January: 6
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).
Average cloud cover in January
Castillos, Uruguay
- Average cloud cover in January: 26
The month with the most cloud cover is September (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in January
Castillos, Uruguay
- Average visibility in January: 10km
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).





