September weather forecastTumbes, Peru
September
Weather in September
Come September, the weather in Tumbes, Peru barely changes from the preceding months. The sea temperature experiences a minor upturn to 22.1°C (71.8°F), and a subtle increase in rainfall to 2mm (0.08") occurs. Nonetheless, the almost unchanging conditions continue to render a predominantly warm and dry atmosphere. The daylight duration remains fixed at 12.1 hours, perfect for outdoor activities.Temperature
Tumbes experiences the lowest of its temperatures in August and September, when the average high-temperatures rise to 25.1°C (77.2°F).Humidity
In September, the average relative humidity in Tumbes is 77%.Rainfall
In Tumbes, in September, it is raining for 3.3 days, with typically 2mm (0.08") of accumulated precipitation. Throughout the year, in Tumbes, there are 138.6 rainfall days, and 426mm (16.77") of precipitation is accumulated.Sea temperature
The month with the coldest seawater in Tumbes is September, with an average sea temperature of 22.1°C (71.8°F).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 22.1°C (71.8°F).
Daylight
In September, the average length of the day is 12h and 5min.On the first day of the month, sunrise is at 06:20 and sunset at 18:22. On the last day of September, sunrise is at 06:07 and sunset at 18:15 -05.
Sunshine
The average sunshine in September in Tumbes is 9.6h.UV index
The months with the lowest UV index in Tumbes are February, May through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 6 in September translates into these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious. Warning! The Sun's UV rays intensify with reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tumbes, Peru
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is March (28°C).
The months with the lowest average high temperature are August and September (25.1°C).
- Average low temperature in September: 20.2°C
The month with the highest average low temperature is February (23.8°C).
The coldest month (with the lowest average low temperature) is August (20.1°C).
Average pressure in September
Tumbes, Peru
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is August (1012.9mbar).
The month with the lowest atmospheric pressure is February (1011.3mbar).
Average wind speed in September
Tumbes, Peru
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is September (11.1km/h).
The calmest months (with the lowest average wind speed) are March and April (8.8km/h).
Average humidity in September
Tumbes, Peru
- Average humidity in September: 77%
The months with the highest relative humidity are February and March (80%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Tumbes, Peru
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is February (135mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in September
Tumbes, Peru
- Average rainfall days in September: 3.3 days
The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is August (0.9 days).
Average sea temperature in September
Tumbes, Peru
- Average sea temperature in September: 22.1°C
The best month for swimming (with the highest average sea temperature) is February (25.8°C).
The coldest month (with the lowest average sea temperature) is September (22.1°C).
Average daylight in September /
Average sunshine in September
Tumbes, Peru
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is November (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 8h and 0min).
Average sunshine days in September
Tumbes, Peru
- Average sunshine days in September: 25.2 days
The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is February (1.1 days).
Average UV index in September
Tumbes, Peru
- Average UV index in September: 6
The months with the highest UV index are January, March and April (UV index 7).
The months with the lowest UV index are February, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Tumbes, Peru
- Average cloud cover in September: 24
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Tumbes, Peru
- Average visibility in September: 10km
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is February (9km).
