Lima
Peru
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Lima, Peru

Amazing waterfront and the Costa Verde highway line just outside Lima, Peru
Amazing waterfront and the Costa Verde highway line just outside Lima, Peru
September, the first month of the spring, in Lima, is also an enjoyable month, with average temperature fluctuating between 18.7°C (65.7°F) and 14.6°C (58.3°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still enjoyable 18.7°C (65.7°F). In Lima, the average low-temperature is 14.6°C (58.3°F).

Humidity

The most humid month in Lima is September, with an average relative humidity of 85.5%.

Rainfall

The month with the most rainfall in Lima is September when the rain falls for 1 days and typically aggregates up to 5.4mm (0.2") of precipitation.

Sea temperature

With an average sea temperature of 15.8°C (60.4°F), September is the month with the coldest seawater in Lima. Swimming in 15.8°C (60.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day in Lima, Peru, is 12h.

Sunshine

In September, the average sunshine is 1.2h.

UV index

Months with the highest UV index in Lima are January through April, September through December, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV radiation for the average person.
The daily maximum UV index of 12 in September interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Lima?

In Lima, Peru, in September, the average high-temperature is 18.7°C (65.7°F), and the average low-temperature is 14.6°C (58.3°F).

What is the most humid month in Lima?

With an average relative humidity of 85.5%, September is the most humid month in Lima, Peru.

What is the average humidity in September in Lima?

In September, the average relative humidity is 85.5%.

How much does it rain in Lima in September?

In Lima, in September, it is raining for 1 days, with typically 5.4mm (0.2") of accumulated precipitation.

What is the rainiest month in Lima?

The month with the most rainfall in Lima, Peru, is September when the rain falls for 1 days and typically aggregates up to 5.4mm (0.2") of precipitation.

What month is the sea coldest in Lima?

With an average sea temperature of 15.8°C (60.4°F), September is the month with the coldest seawater in Lima, Peru. Swimming in 15.8°C (60.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How cold is the water in September in Lima?

In Lima, Peru, in September, the average water temperature is 15.8°C (60.4°F). Swimming in 15.8°C (60.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Lima have in September?

The average length of the day in September in Lima, Peru, is 12h.

How many hours of sunshine does Lima have in September?

In September, the average sunshine in Lima is 1.2h.

When is the highest UV index in Lima?

Months with the highest UV index in Lima are January through April, September through December, with an average maximum UV index of 12.

What is the UV index reading in September in Lima?

The average daily maximum UV index in September is 12. A UV Index reading of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Lima, Peru
  • Average high temperature in September: 18.7°C

The warmest month (with the highest average high temperature) is February (26.5°C).
The month with the lowest average high temperature is August (18.4°C).

  • Average low temperature in September: 14.6°C

The month with the highest average low temperature is February (19.4°C).
Coldest months (with the lowest average low temperature) are August and September (14.6°C).

Average humidity in September - Lima, Peru
  • Average humidity in September: 85.5%

The month with the highest relative humidity is September (85.5%).
The month with the lowest relative humidity is December (81.5%).

Average rainfall in September - Lima, Peru
  • Average rainfall in September: 5.4mm

The wettest month (with the highest rainfall) is September (5.4mm).
Driest months (with the lowest rainfall) are April and November (0mm).

Average rainfall days in September - Lima, Peru
  • Average rainfall days in September: 1 days

The month with the highest number of rainy days is August (2 days).
Months with the lowest number of rainy days are January, February, March, April, May, June, July, September, October, November and December (1 days).

Average sea temperature in September - Lima, 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 - Lima, Peru
  • Average daylight in September: 12h

The month with the longest days is December (Average daylight: 12.8h).
The month with shortest days is June (Average daylight: 11.4h).

  • Average sunshine in September: 1.2h

The month with most sunshine is April (Average sunshine: 6.1h).
The month with least sunshine is July (Average sunshine: 0.9h).

Average UV index in September - Lima, Peru
  • Average UV index in September: 12

Months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 9).