Lima weather in September
In September, Lima has an average high of 28 °C83 °F and an average low of 20 °C68 °F, with about 1 mm0.0 in of precipitation. It is the 9th warmest month of the year and the driest.
How September compares with other months
Compared with August, September is about the same temperature. Compared with October, September is about the same temperature. Daylight lasts about 12.1 hours around the middle of the month. Average relative humidity is 61% and the average cloud amount 90%.
Is September a good time to visit Lima?
Yes — September is one of the most comfortable months to visit Lima by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in September
For Lima in September, pack light summer clothes such as T-shirts, shorts or light dresses.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Lima | 2883 | 2068 | 10.0 |
| Santa Anita - Los Ficus | 2882 | 1967 | 10.0 |
| Chincha Alta | 2475 | 1661 | 10.0 |
| Huancayo | 1661 | 439 | 130.5 |
| Huánuco | 2678 | 1559 | 251.0 |
| Ica | 2985 | 1966 | 30.1 |
| Huaraz | 2474 | 948 | 120.5 |
| Ayacucho | 2069 | 847 | 210.8 |
| Chimbote | 2068 | 1662 | 20.1 |
Nearby places that are more than 1 °C1.8 °F cooler: Chincha Alta, Huancayo, Huánuco and Huaraz.
Other months in Lima
- January30 °C85 °F / 23 °C73 °F
- February30 °C86 °F / 24 °C74 °F
- March30 °C86 °F / 23 °C74 °F
- April30 °C86 °F / 22 °C72 °F
- May29 °C84 °F / 21 °C70 °F
- June28 °C83 °F / 20 °C67 °F
- July28 °C82 °F / 19 °C66 °F
- August28 °C83 °F / 19 °C67 °F
- September28 °C83 °F / 20 °C68 °F
- October28 °C83 °F / 20 °C69 °F
- November28 °C83 °F / 21 °C70 °F
- December29 °C84 °F / 22 °C71 °F
Frequently asked questions
How warm is Lima in September?
In September the average high in Lima is 28 °C (83 °F) and the average low is 20 °C (68 °F).
Does it rain a lot in Lima in September?
On average about 1 mm (0.0 in) of precipitation falls in September; it ranks 12th of the 12 months.
Is September the warmest month in Lima?
No. The warmest month in Lima is March, with an average high of 30 °C (86 °F). The coldest month is July, with an average low of 19 °C (66 °F).
How long is the day in Lima in September?
In the middle of September the day in Lima lasts about 12.1 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Lima in September?
The average relative humidity in September is about 61%. This is a long-term average for the whole day.
How cloudy is Lima in September?
On average about 90% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 1,195 m, while Lima lies at about 152 m. Temperatures on this page were therefore adjusted by +6.8 °C12.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.