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San Juan, Peru Weather Forecast
San Juan, Weather Forecast Dated: 956 PM Sun Aug 30 2026 (San Juan Time)
Expect a cool pattern with plenty of sunshine and mostly dry weather over the next two weeks. generally humid conditions and no major pressure swings will dominate.
Sunday, August 30, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
64°F 18°C
Partly Cloudy
Early-Evening
63°F 17°C
Cloudy
Cool with mostly sunny skies in the morning, mostly sunny in the afternoon, and partly sunny in the evening, steady humidity and steady pressure. Winds SSE at 13 mph 21 km/h.
Monday, August 31, 2026
Mid-Morning
63°F 17°C
Partly Cloudy
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
62°F 16°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds SE at 23 mph 37 km/h.
Tuesday, September 1, 2026
Mid-Morning
63°F 17°C
Cloudy
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
62°F 17°C
Partly Cloudy
Cool with mostly cloudy skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds SSE at 15 mph 25 km/h.
Wednesday, September 2, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
65°F 18°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from SSE to SE at 13 mph 22 km/h.
Thursday, September 3, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
64°F 18°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds SSE at 15 mph 23 km/h.
Friday, September 4, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
63°F 17°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from SSE to SE at 11 mph 17 km/h.
Saturday, September 5, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
63°F 17°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from SSE to SE at 12 mph 19 km/h.
Sunday, September 6, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
63°F 18°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from SSE to SE at 12 mph 19 km/h.
Monday, September 7, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
62°F 17°C
Partly Cloudy
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from SSE to SE at 10 mph 15 km/h.
Tuesday, September 8, 2026
Mid-Morning
62°F 17°C
Scattered Showers
Mid-Afternoon
61°F 16°C
Partly Cloudy
Early-Evening
62°F 17°C
Clear
Cool with partly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from S to SE at 9 mph 13 km/h.
Wednesday, September 9, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
62°F 17°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds SSE at 19 mph 30 km/h.
Thursday, September 10, 2026
Mid-Morning
62°F 17°C
Scattered Showers
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
62°F 17°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds SE at 21 mph 33 km/h.
Friday, September 11, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
63°F 17°C
Clear
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds shifting from SSE to SE at 14 mph 22 km/h.
Saturday, September 12, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
62°F 17°C
Partly Cloudy
Cool with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure. Winds S at 9 mph 14 km/h.
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