San Martín, Peru Weather

San Martín,  Weather
(Photo by Scott Umstattd on Unsplash)

Current conditions

Updated:
23°C
73.4°F
°C °F

Condition: Moderate Drizzle

Pressure: 977 hPa

Feel like: 28 °C

Temperature: 23°C

Cloud: 84%

Humidity: 97%

Wind: WNW - 2 km/h

Visibility: 5.32 km

Weather forecast

Sat
19 Sep
21°C / 34°C
Drizzle
Sun
20 Sep
22°C / 34°C
Mainly Clear
Mon
21 Sep
22°C / 34°C
Moderate Drizzle
Tue
22 Sep
22°C / 33°C
Drizzle
Wed
23 Sep
22°C / 33°C
Drizzle
Hourly forecast today:
07:00 AM
22° / 23°
22° / 23°
Moderate Drizzle
97% 11 km/h
08:00 AM
22° / 23°
22° / 23°
Drizzle
97% 6 km/h
09:00 AM
22° / 22°
22° / 22°
Drizzle
98% 9 km/h
10:00 AM
22° / 22°
22° / 22°
Drizzle
97% 6 km/h
11:00 AM
22° / 22°
22° / 22°
Overcast
96% 6 km/h
12:00 PM
22° / 23°
22° / 23°
Overcast
96% 8 km/h
13:00 PM
23° / 23°
23° / 23°
Drizzle
97% 10 km/h
14:00 PM
22° / 26°
22° / 26°
Moderate Drizzle
82% 9 km/h
15:00 PM
23° / 26°
23° / 26°
Drizzle
84% 11 km/h
16:00 PM
23° / 24°
23° / 24°
Drizzle
93% 12 km/h
17:00 PM
22° / 25°
22° / 25°
Drizzle
85% 14 km/h

30 Day Averages and Extremes

  • Average high 31.87°C
  • Average low 21.8°C
  • Hottest day 34°C (11 September 2026)
  • Coldest day 20°C (09 September 2026)
  • Average humidity 78.83%
  • Days with precipitation 30 days
  • Highest precipitation 78 mm (14 September 2026)

Yesterday's Data

  • Max: 32°C
  • Min: 21°C
  • Total Precipitation: 4 mm

Temperature and possibility of rain in San Martín over the next 12 hours

Temperature and possibility of rain in San Martín in the coming days

Rainfall in San Martín in the coming days

San Martín Climate Summary

San Martín features a Tropical rainforest (Köppen classification: Af), with an average annual temperature of 26.5ºC (79.7ºF), which is about 8.87% higher than the national average for Peru. Annually, the city experiences approximately 223.6 millimeters (8.8 inches) of rainfall, spread across 243.11 rainy days, accounting for 66.61% of the year.

Longitude -7.2444881
Latitude -76.8259652
Yearly high temperature 31.5ºC (88.7ºF)
Yearly low temperature 19.09ºC (66.36ºF)
Hottest month January 30.65ºC (87.17ºF)
Coldest month April 19.21ºC (66.58ºF)
Yearly precip 223.6mm (8.8in)
Days with rainfall 243.11 days (66.61%)
Driest month August (64.49%)
Wettest month February (80.88%)

Weather averages by month

Month High / Low (°C) Rain
January 30.65° / 19.72° 24.36 days
February 29.95° / 19.96° 24.82 days
March 30.96° / 19.62° 25.73 days
April 31.57° / 19.21° 21.82 days
May 31.66° / 18.89° 19.64 days
June 31.35° / 17.83° 15.18 days
July 31.23° / 17.6° 13.91 days
August 32.68° / 18.42° 12.64 days
September 32.96° / 19.03° 15.91 days
October 32.3° / 19.42° 22.64 days
November 31.93° / 19.85° 22.91 days
December 30.76° / 19.54° 23.55 days

Frequently asked questions

1. What is the hottest month in San Martín?

January has the highest average monthly temperature (daily mean of 30.65ºC) and April are the coolest (daily mean of 19.21ºC).

2. What should I wear in San Martín today?

For today's very hot weather in San Martín, with the high temperatures above 28ºC (82.4ºF), consider wearing:
- Open-toed sandals or light sneakers
- Sunscreen for skin protection
- Breathable shorts or skirts
- UV-protective sunglasses

Temperature

Early
22°C / 25°C
Morning
22°C / 22°C
Afternoon
23°C / 26°C
Evening
21°C / 28°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 479
  • CO 206
  • NH3 0
  • NO2 1
  • O3 44
  • PM10 8
  • PM25 8
  • SO2 0
  • CH4 1,373

Sunrise / Sunset

10:58
23:03