Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
On the advent of May, Callao's average high-temperature exhibits a minor adjustment to a pleasant 22.1°C (71.8°F) from April's 23.4°C (74.1°F). May nights reflect a consistent temperature dip to an enjoyable 18.2°C (64.8°F), a slight descent from daytime peaks.Humidity
In Callao, the average relative humidity in May is 80%.Rainfall
The months with the least rainfall in Callao are January, April, May, September through December Rain falls for 1.1 days and accumulates 1mm (0.04") of rain.Sea temperature
In Callao, Peru, in May, the average water temperature is 18.8°C (65.8°F).Note: Most people do not find pleasure in swimming when the water temperature is 18.8°C (65.8°F). Breathing becomes increasingly difficult to manage as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Callao, the average length of the day in May is 11h and 34min.On the first day of the month, sunrise is at 06:15 and sunset at 17:55. On the last day of May, in Callao, sunrise is at 06:22 and sunset at 17:50 -05.
Sunshine
In May, the average sunshine in Callao is 7.5h.UV index
The months with the lowest UV index in Callao are May through November, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 5 in May suggests the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Callao in May?
What is the average humidity in May in Callao?
What is the driest month in Callao?
How many days does it rain in May in Callao?
What is the sea temperature in May in Callao?
How many hours of daylight does Callao have in May?
What time are sunrise and sunset in May in Callao?
How many hours of sunshine does Callao have in May?
What is the month with the lowest UV index in Callao?
What is the UV index reading in May in Callao?
Average temperature in May
Callao, Peru
- Average high temperature in May: 22.1°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 May: 18.2°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 May
Callao, Peru
- Average pressure in May: 1015.5mbar
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 May
Callao, Peru
- Average wind speed in May: 13.6km/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 May
Callao, Peru
- Average humidity in May: 80%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is August (77%).
Average rainfall in May
Callao, Peru
- Average rainfall in May: 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 May
Callao, Peru
- Average rainfall days in May: 1.1 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 May
Callao, Peru
- Average sea temperature in May: 18.8°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 May /
Average sunshine in May
Callao, Peru
- Average daylight in May: 11h 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 May: 7h and 3min
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 May
Callao, Peru
- Average sunshine days in May: 23.7 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 May
Callao, Peru
- Average UV index in May: 5
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 May
Callao, Peru
- Average cloud cover in May: 17
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 May
Callao, Peru
- Average visibility in May: 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).
