September weather forecastLima, Paraguay
September
Weather in September
Stepping into September, Lima continues its transition from winter to summer. Average temperatures rise slightly, indicating progress towards the warmer seasons. The decrease in wind speed along with stable cloud percentage lends a pattern of consistency. September shares its lower rainfall volumes with previous months, giving way to drier conditions. Lima unfolds its diversity across the changing seasons, making it an enchanting destination all year round.Temperature
The advent of September denotes an average high-temperature of a still moderately hot 27.7°C (81.9°F), subtly different from August's 25.3°C (77.5°F). During September, an average low-temperature of 15.9°C (60.6°F) is observed in Lima.Heat index
September's heat index is appraised at a tropical 30°C (86°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
September is the least humid month in Lima, with an average relative humidity of 71%.Rainfall
In Lima, in September, it is raining for 8.5 days, with typically 35mm (1.38") of accumulated precipitation. In Lima, during the entire year, the rain falls for 166 days and collects up to 911mm (35.87") of precipitation.Daylight
In September, the average length of the day is 11h and 58min.On the first day of September in Lima, Paraguay, sunrise is at 05:56 and sunset at 17:35. On the last day of the month, sunrise is at 05:26 and sunset at 17:45 -04.
Sunshine
In September, the average sunshine in Lima is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 6 during September leads to these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lima, Paraguay
- Average high temperature in September: 27.7°C
The warmest month (with the highest average high temperature) is January (32.7°C).
The month with the lowest average high temperature is July (22°C).
- Average low temperature in September: 15.9°C
The month with the highest average low temperature is January (22.1°C).
The coldest month (with the lowest average low temperature) is July (12.8°C).
Average pressure in September
Lima, Paraguay
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is July (1017.5mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed in September
Lima, Paraguay
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is August (10.1km/h).
The calmest months (with the lowest average wind speed) are February and March (7.2km/h).
Average humidity in September
Lima, Paraguay
- Average humidity in September: 71%
The month with the highest relative humidity is May (86%).
The month with the lowest relative humidity is September (71%).
Average rainfall in September
Lima, Paraguay
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (128mm).
The driest month (with the least rainfall) is August (22mm).
Average rainfall days in September
Lima, Paraguay
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is December (20.5 days).
The month with the least rainy days is August (6 days).
Average daylight in September /
Average sunshine in September
Lima, Paraguay
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is November (Average sunshine: 10h and 30min).
The month with the least sunshine is June (Average sunshine: 6h and 42min).
Average sunshine days in September
Lima, Paraguay
- Average sunshine days in September: 20.7 days
The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in September
Lima, Paraguay
- Average UV index in September: 6
The months with the highest UV index are January and December (UV index 7).
The month with the lowest UV index is May (UV index 4).
Average cloud cover in September
Lima, Paraguay
- Average cloud cover in September: 31
The month with the most cloud cover is May (Cloud cover 53).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in September
Lima, Paraguay
- Average visibility in September: 9km
The months with the highest visibility are August and September (9km).
The month with the lowest visibility is May (6km).





