Climate & Weather in Lima

Good to Know

• Lima experiences minimal temperature variation year-round; seasonal differences are defined by humidity and cloud cover rather than extreme temperature swings.
• December–April offers the most reliable sunshine for beach activities and coastal walks; expect warm temperatures averaging 24–26°C (75–79°F).
• June–October is Lima's 'winter,' characterized by persistent coastal fog (garúa), low clouds, and high humidity that make temperatures feel colder than readings suggest; typical range 15–18°C (59–64°F).
• True rainfall is extremely rare in Lima (less than 8 inches annually); most moisture comes as fine mist and fog rather than rain.
• El Niño events can increase rainfall and ocean temperature irregularly, but Lima itself rarely experiences heavy rain even in El Niño years.
• May and September are shoulder months with good weather, fewer crowds, and lower accommodation costs than summer or peak winter tourism.
• July and August are the grayest and dankest months, with peak garúa; tourist crowds are high despite poor weather.
• Humidity remains high year-round (75–79%), even during the relatively dry summer months.
• Ocean temperature is coolest in September (~16°C (61°F)/61°F) and warmest in February (~22°C (72°F)/72°F); swimming is most comfortable January–March.
• Coastal neighborhoods (Miraflores, Barranco) experience more fog and chill, particularly in winter; inland areas like Surco often feel warmer and brighter.