September weather forecastCulebras, Peru
September
Weather in September
September, the first month of the spring in Culebras, is also a fresh month, with temperature in the range of an average low of 5°C (41°F) and an average high of 10.8°C (51.4°F).Temperature
The advent of September presents an average high-temperature of a still cool 10.8°C (51.4°F), maintaining a close correlation with the preceding month. In the month of September, the temperature generally rests at an average low of 5°C (41°F).Humidity
The average relative humidity in September is 62%.Rainfall
In Culebras, during September, the rain falls for 22.5 days and regularly aggregates up to 91mm (3.58") of precipitation. Throughout the year, there are 283.6 rainfall days, and 1909mm (75.16") of precipitation is accumulated.Snowfall
Months with snowfall are January through December. In Culebras, in September, snow falls for 1.3 days, with typically accumulated 26mm (1.02") of snow. Throughout the year, there are 32.5 snowfall days, and 798mm (31.42") of snow is accumulated.Sea temperature
With an average sea temperature of 16.3°C (61.3°F), September is the month with the coldest seawater.Note: The enjoyment of swimming decreases for most when the surface water temperature is 16.3°C (61.3°F). Breathing control becomes increasingly challenging as temperatures descend below 21°C (69.8°F).
Daylight
The average length of the day in September is 12h and 3min.On the first day of September, sunrise is at 06:14 and sunset at 18:10. On the last day of the month, sunrise is at 05:56 and sunset at 18:08 -05.
Sunshine
In September, the average sunshine is 8.9h.UV index
January through March, September, October and December, with an average maximum UV index of 2, are months with the lowest UV index in Culebras. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 2 during September, leads to the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Culebras, Peru
- Average high temperature in September: 10.8°C
The warmest month (with the highest average high temperature) is August (11.1°C).
The months with the lowest average high temperature are January and December (9.3°C).
- Average low temperature in September: 5°C
The month with the highest average low temperature is November (5.9°C).
The coldest month (with the lowest average low temperature) is July (3.7°C).
Average pressure in September
Culebras, Peru
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is July (1017.3mbar).
The months with the lowest atmospheric pressure are February and November (1014.5mbar).
Average wind speed in September
Culebras, Peru
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is July (8.9km/h).
The calmest month (with the lowest average wind speed) is November (6.1km/h).
Average humidity in September
Culebras, Peru
- Average humidity in September: 62%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Culebras, Peru
- Average rainfall in September: 91mm
The wettest month (with the highest rainfall) is December (269mm).
The driest months (with the least rainfall) are June and July (31mm).
Average rainfall days in September
Culebras, Peru
- Average rainfall days in September: 22.5 days
The month with the highest number of rainy days is March (29.7 days).
The month with the least rainy days is July (11.8 days).
Average snowfall in September
Culebras, Peru
- Average snowfall in September: 26mm
The month with the highest snowfall is February (155mm).
The month with the least snowfall is June (7mm).
Average snowfall days in September
Culebras, Peru
- Average snowfall days in September: 1.3 days
The month with the highest number of snowfall days is December (5.3 days).
The month with the least snowfall days is May (1.1 days).
Average sea temperature in September
Culebras, Peru
- Average sea temperature in September: 16.3°C
The best month for swimming (with the highest average sea temperature) is March (21.8°C).
The coldest month (with the lowest average sea temperature) is September (16.3°C).
Average daylight in September /
Average sunshine in September
Culebras, Peru
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in September
Culebras, Peru
- Average sunshine days in September: 5.9 days
The month with the most sunshine days is July (17.8 days).
The month with the least sunshine days is January (0.8 days).
Average UV index in September
Culebras, Peru
- Average UV index in September: 2
The months with the highest UV index are April, May, June, July, August and November (UV index 3).
The months with the lowest UV index are January, February, March, September, October and December (UV index 2).
Average cloud cover in September
Culebras, Peru
- Average cloud cover in September: 35
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in September
Culebras, Peru
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March and December (8km).





