Lima has a semi-arid climate with almost no rainfall (under 1mm monthly) but persistent 81–83% humidity and coastal fog (garúa) that dims May–Oct. Summers (Dec–Mar) are warm at 27°C with blue skies — the clear visitor window — while winter months stay grey and cool around 19°C despite the dryness.
Temperature range, rainfall, and humidity by month
| Month | High | Low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 25.1° | 19.8° | 1mm | 80% |
| Feb | 27° | 21.2° | 4mm | 82% |
| Mar | 26.5° | 20.5° | 1mm | 78% |
| Apr | 23.7° | 18.6° | 1mm | 81% |
| May | 20.7° | 16.7° | 1mm | 84% |
| Jun | 19.9° | 16.9° | 1mm | 83% |
| Jul | 19.3° | 16.3° | 1mm | 82% |
| Aug | 18.7° | 15.5° | 1mm | 82% |
| Sep | 19° | 15.5° | 1mm | 83% |
| Oct | 20.4° | 16.4° | 1mm | 83% |
| Nov | 21.3° | 17.1° | 1mm | 82% |
| Dec | 22.6° | 18.4° | 1mm | 81% |
Experiences to seek out and peak periods to plan around
Limeños head south to Asia, Punta Hermosa, and Punta Rocas when highs hit 27–28°C and the coastal sun breaks through; rainfall stays under 1mm so beach days are reliable.
South America's largest gastronomy festival showcases ceviche, anticuchos, and pisco tastings; cool 19°C days under garúa fog make long food-hall sessions comfortable.
The 'Purple Month' peaks with the 18 October procession through the Centro Histórico as thousands in purple robes carry the image from Las Nazarenas; overcast 20°C days make the hours-long walk bearable.
Shoulder season between summer sun and winter fog: 22–25°C highs, still-dry coast, and easier reservations at Central, Maido, and Isolina without summer-crowd surcharges.
Near-permanent overcast with 82–83% humidity and highs stuck at 19°C — no real rain (under 1mm/month) but sun rarely appears; pack a light jacket and skip the beach plans.
Peru's domestic holiday period plus international high season: coastal hotel rates spike, Miraflores fills up, and top restaurants book 4–6 weeks out.
Central Lima streets close for the main processions (18, 19, 28 October); plan around road closures and expect packed hotels near Plaza Mayor.
Compare climate across destinations in Peru
| City | Avg High | Avg Low | Annual Rain | Season Overview |
|---|---|---|---|---|
🇵🇪 Lima | 22° | 18° | 10 mm | |
🇵🇪 Cusco | 21° | 6° | 583 mm |
Government portals and tourism boards for Lima, Peru