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 sea temperature 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
January begins with an average high-temperature of a moderately hot 24.1°C (75.4°F), reflecting close similarity to the preceding month. Throughout January, Callao observes a steady low-temperature average of 20.4°C (68.7°F), reflecting a minor dip from daytime highs.Humidity
The average relative humidity in January is 80%.Rainfall
The months with the least rainfall in Callao, Peru, are January, April, May, September through December Rain falls for 2.3 days and accumulates 1mm (0.04") of rain.Sea temperature
In Callao, in January, the average water temperature is 20.6°C (69.1°F).Note: For most people, a water temperature of 20.6°C (69.1°F) is not conducive to enjoyable swimming. Breathing control becomes harder as the water temperature dips below 21°C (69.8°F).
Daylight
The average length of the day in January is 12h and 44min.On the first day of January in Callao, sunrise is at 05:47 and sunset at 18:36. On the last day of the month, sunrise is at 06:02 and sunset at 18:40 -05.
Sunshine
In Callao, the average sunshine in January is 10.4h.UV index
January through April and December, with an average maximum UV index of 6, are months with the highest UV index in Callao, Peru. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during January translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature in Callao?
What is the average humidity in January in Callao?
What is the driest month in Callao?
How much does it rain in Callao in January?
How cold is the water in January in Callao?
What is the average length of the day in January in Callao?
What time are sunrise and sunset in January in Callao?
How many hours of sunshine does Callao have in January?
What are the months with the highest UV index in Callao?
What is the UV index intensity in January in Callao?
Average temperature in January
Callao, Peru
- Average high temperature in January: 24.1°C
The warmest month (with the highest average high temperature) is February (25.1°C).
The month with the lowest average high temperature is August (19.8°C).
- Average low temperature in January: 20.4°C
The month with the highest average low temperature is February (21.6°C).
The coldest month (with the lowest average low temperature) is August (15.2°C).
Average pressure in January
Callao, Peru
- Average pressure in January: 1014.2mbar
The month with the highest atmospheric pressure is August (1016.3mbar).
The month with the lowest atmospheric pressure is February (1013.6mbar).
Average wind speed in January
Callao, Peru
- Average wind speed in January: 12.2km/h
The windiest month (with the highest average wind speed) is July (14.2km/h).
The calmest month (with the lowest average wind speed) is February (11km/h).
Average humidity in January
Callao, Peru
- Average humidity in January: 80%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is August (77%).
Average rainfall in January
Callao, Peru
- Average rainfall in January: 1mm
The wettest months (with the highest rainfall) are February, March, June, July and August (2mm).
The driest months (with the least rainfall) are January, April, May, September, October, November and December (1mm).
Average rainfall days in January
Callao, Peru
- Average rainfall days in January: 2.3 days
The month with the highest number of rainy days is March (4.6 days).
The month with the least rainy days is November (0.5 days).
Average sea temperature in January
Callao, Peru
- Average sea temperature in January: 20.6°C
The best month for swimming (with the highest average sea temperature) is March (20.9°C).
The coldest month (with the lowest average sea temperature) is September (15.8°C).
Average daylight in January /
Average sunshine in January
Callao, Peru
- Average daylight in January: 12h and 4min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in January: 10h and 2min
The month with the most sunshine is October (Average sunshine: 11h and 54min).
The month with the least sunshine is June (Average sunshine: 7h and 24min).
Average sunshine days in January
Callao, Peru
- Average sunshine days in January: 26.6 days
The month with the most sunshine days is December (29.2 days).
The month with the least sunshine days is July (18 days).
Average UV index in January
Callao, Peru
- Average UV index in January: 6
The months with the highest UV index are January, February, March, April and December (UV index 6).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 5).
Average cloud cover in January
Callao, Peru
- Average cloud cover in January: 35
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in January
Callao, Peru
- 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).
Callao, Peru
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