Lima
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Lima Weather in September

September in Lima averages 20°C (68°F) during the day and 16°C (61°F) at night. With only 15 mm (0.6 in) of rainfall expected on average, it's a largely dry month.

Rainfall in Lima in September

Analyzing past climate data, one can expect approximately 2 days of rain, averaging 15 mm (0.6 in). On the rare occasion it rains, expect a brief, moderate shower rather than a heavy downpour.

Temperature in Lima in September

Lima in September has excellent weather. Days reach 20°C (68°F) and nights cool to 16°C (61°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 16°C (61°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Lima in September

This month is characterized by fewer sunny days, with about 39 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

Wind Speed in Lima in September

September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Average water temperature in September

The water temperature is 16°C (61°F), chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

For additional travel inspiration, our weather planner can help you discover destinations worldwide.

Lima Temperature in September

Min Temperature
16°C (61°F)
Max Temperature
20°C (68°F)
Water Temperature
16°C (61°F)
Chance of Rain
5%
Precipitation
15 mm (0.6 in)
Rainy days
2 days
Humidity
85%
Windspeed
3 m/s (6 knots)
Sunshine
39 hours
Percentage Sunshine

Lima Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Lima - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Lima typically stay consistent throughout September, with daily highs averaging around 20°C (68°F). Nights are pleasant, with lows around 16°C (61°F).

Average temperatures in September

Historical weather records for Lima in September

Browse day-by-day weather records for Lima spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Lima historical weather extremes in September

Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Lima.

  • The warmest day in September was on September 17, 2023, with a maximum of 27°C (81°F).
  • Lima experienced its chilliest September day on September 29, 2007, reaching only 15°C (59°F).
  • The lowest overnight temperature recorded in September was 11°C (52°F) (September 13, 1986).

Best Places in Peru in September

Find out more about the weather in Peru and which places have the best travel conditions in this month. See all of Peru in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Lima in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Dry conditions mean you won't need to worry about rain protection. The water temperature sits at about 16°C (61°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.

What To Do in Lima in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    4/10
  • Cycling
    10/10
  • Walking
    10/10
  • Camping
    10/10
  • Outdoor sports
    10/10

Lima 3-Day Forecast

More climate data for Lima

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.