🇵🇪 Weather in San Martin
Map Overlays:
Hourly Forecast for San Martin
06:00
20°
25%
07:00
21°
25%
08:00
22°
17%
09:00
24°
17%
10:00
26°
3%
11:00
28°
2%
12:00
29°
1%
13:00
31°
1%
14:00
31°
1%
15:00
28°
2%
16:00
27°
2%
17:00
26°
3%
18:00
25°
3%
19:00
24°
4%
20:00
24°
4%
21:00
22°
6%
22:00
22°
6%
23:00
22°
7%
00:00
22°
7%
01:00
21°
8%
02:00
21°
9%
03:00
21°
9%
04:00
21°
10%
05:00
21°
11%
14-Day Forecast for San Martin
2026-08-25
Sunny
31° /
20°
2026-08-26
Sunny
31° /
20°
2026-08-27
Partly Cloudy
32° /
20°
2026-08-28
Sunny
31° /
20°
2026-08-29
Sunny
31° /
20°
2026-08-30
Sunny
31° /
20°
2026-08-31
Sunny
30° /
20°
Additional Forecasts for San Martin
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 87.0 μg/m³
O₃ (Ozone) 43.0 μg/m³
NO₂ (Nitrogen Dioxide) 0.9 μg/m³
SO₂ (Sulphur Dioxide) 0.9 μg/m³
PM2.5 (Fine particles) 6.7 μg/m³
PM10 (Coarse particles) 10.0 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Peru
Weather in San Martin — FAQ
Answers refreshed each request based on current conditions in San Martin.
What is the weather like right now in San Martin?
Right now in San Martin, Peru the temperature is 20.7°C (feels like 20.6°C), with cloudy. Relative humidity is 82% and wind is 14.4 km/h.
What is today's high and low temperature in San Martin?
Today's forecast high in San Martin is 30.8°C and the overnight low is 20.5°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in San Martin today?
The chance of precipitation in San Martin today is 6%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in San Martin differ from nearby cities?
Even short distances can change temperatures noticeably. San Martin's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.