January weather forecastPiriápolis, Uruguay
January
Weather in January
The New Year begins warm in Piriápolis, Uruguay, with January boasting comfortable temperatures and mild humidity. The city witnesses a gentle reduction in daylight hours from December, subtly signaling the onset of cooler days ahead. The sea remains inviting, with beach-goers enjoying pleasant conditions. Wind speeds maintain on the higher side, adding a refreshing aspect to the coastal climate. A notable observation for January is the highest UV index of 6, urging residents and tourists to practice effective sun protection.Temperature
The highest temperatures are recorded in January, with averages reaching a high of 25.3°C (77.5°F) and a low of 19.8°C (67.6°F).Humidity
January is the least humid month, with an average relative humidity of 71%.Rainfall
The month with the least rainfall is January, when the rain falls for 10.3 days and typically collects 44mm (1.73") of precipitation.Sea temperature
January and February, with an average sea temperature of 22.8°C (73°F), are months with the warmest seawater in Piriápolis.Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 22.8°C (73°F).
Daylight
In January, the average length of the day in Piriápolis is 14h and 11min.On the first day of January, sunrise is at 05:30 and sunset at 19:58. On the last day of the month, sunrise is at 05:59 and sunset at 19:49 -03.
Sunshine
The month with the most sunshine is January, with an average of 10.9h of sunshine.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 value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: In January, the maximum UV index of 6 suggests this advice:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. 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. Enhance your sun protection with tightly woven, yet airy clothing. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Piriápolis, Uruguay
- Average high temperature in January: 25.3°C
The warmest month (with the highest average high temperature) is January (25.3°C).
The month with the lowest average high temperature is July (13.2°C).
- Average low temperature in January: 19.8°C
The month with the highest average low temperature is February (20.3°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in January
Piriápolis, Uruguay
- Average pressure in January: 1012.5mbar
The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is December (1011.5mbar).
Average wind speed in January
Piriápolis, Uruguay
- Average wind speed in January: 20km/h
The windiest months (with the highest average wind speed) are June and September (21.3km/h).
The calmest month (with the lowest average wind speed) is May (19.1km/h).
Average humidity in January
Piriápolis, Uruguay
- Average humidity in January: 71%
The months with the highest relative humidity are July, August and September (79%).
The month with the lowest relative humidity is January (71%).
Average rainfall in January
Piriápolis, Uruguay
- Average rainfall in January: 44mm
The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is January (44mm).
Average rainfall days in January
Piriápolis, Uruguay
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is March (14.3 days).
The months with the least rainy days are June, August and September (10.2 days).
Average sea temperature in January
Piriápolis, Uruguay
- Average sea temperature in January: 22.8°C
The best months for swimming (with the highest average sea temperature) are January and February (22.8°C).
The coldest month (with the lowest average sea temperature) is July (11.8°C).
Average daylight in January /
Average sunshine in January
Piriápolis, Uruguay
- Average daylight in January: 14h and 12min
The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in January: 10h and 54min
The month with the most sunshine is January (Average sunshine: 10h and 54min).
The month with the least sunshine is July (Average sunshine: 5h and 24min).
Average sunshine days in January
Piriápolis, Uruguay
- Average sunshine days in January: 18 days
The month with the most sunshine days is August (19.3 days).
The month with the least sunshine days is March (13.6 days).
Average UV index in January
Piriápolis, Uruguay
- Average UV index in January: 6
The months with the highest UV index are January, February, March and December (UV index 6).
The month with the lowest UV index is July (UV index 3).
Average cloud cover in January
Piriápolis, Uruguay
- Average cloud cover in January: 22
The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 22).
Average visibility in January
Piriápolis, Uruguay
- 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).





