September weather forecast
Lima, Paraguay

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.