September weather forecastCallao, Peru
September
Weather in September
September's weather in Callao, Peru, heralds the arrival of spring. The temperature starts to ascend, rising from August, rekindling the city's warm allure. September witnesses an increase in daylight hours, marking longer sunny spells. Contrarily, with a relative rise in sea temperature to 15.8°C (60.4°F), beaches regain favor among tourism hotspots. A decay in wind speed joins forces with the scanty rainfall to present an ideally pleasant atmosphere.Temperature
With the advent of September, Callao experiences an average high-temperature of a pleasant 20.2°C (68.4°F), mirroring a close resemblance to the previous month. Callao sees a minor drop to an average minimum temperature of 15.5°C (59.9°F) during the night in the month of September.Humidity
In Callao, the average relative humidity in September is 78%.Rainfall
January, April, May, September through December are months with the least rain when the rain falls for 1.5 days and typically aggregates up to 1mm (0.04") of rain.Sea temperature
September is the month with the coldest seawater in Callao, Peru, with an average sea temperature of 15.8°C (60.4°F).Note: Most individuals do not find swimming at 15.8°C (60.4°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.
Daylight
The average length of the day in September in Callao is 12h and 2min.On the first day of the month, sunrise is at 06:11 and sunset at 18:04. On the last day of September, in Callao, Peru, sunrise is at 05:52 and sunset at 18:04 -05.
Sunshine
In Callao, the average sunshine in September is 10.5h.UV index
May through November, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 during September translates into the following guidance:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Callao, Peru
- Average high temperature in September: 20.2°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 September: 15.5°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 September
Callao, Peru
- Average pressure in September: 1016mbar
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 September
Callao, Peru
- Average wind speed in September: 14.1km/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 September
Callao, Peru
- Average humidity in September: 78%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Callao, Peru
- Average rainfall in September: 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 September
Callao, Peru
- Average rainfall days in September: 1.5 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 September
Callao, Peru
- Average sea temperature in September: 15.8°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 September /
Average sunshine in September
Callao, Peru
- Average daylight in September: 12h and 0min
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 September: 10h and 30min
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 September
Callao, Peru
- Average sunshine days in September: 22.3 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 September
Callao, Peru
- Average UV index in September: 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 September
Callao, Peru
- Average cloud cover in September: 14
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 September
Callao, Peru
- Average visibility in September: 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).
