San Martín, Peru Weather

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

Current conditions

Updated:
28°C
82.4°F
°C °F

Condition: Clear Sky

Pressure: 976 hPa

Feel like: 34 °C

Temperature: 28°C

Cloud: 4%

Humidity: 60%

Wind: NE - 2 km/h

Visibility: 21.7 km

Weather forecast

Tue
04 Aug
21°C / 31°C
Drizzle
Wed
05 Aug
21°C / 30°C
Drizzle
Thu
06 Aug
21°C / 31°C
Drizzle
Fri
07 Aug
21°C / 32°C
Drizzle
Sat
08 Aug
21°C / 31°C
Drizzle
Hourly forecast today:
17:00 PM
20° / 28°
20° / 28°
Clear Sky
60% 15 km/h
18:00 PM
20° / 30°
20° / 30°
Clear Sky
56% 19 km/h
19:00 PM
20° / 30°
20° / 30°
Drizzle
56% 23 km/h
20:00 PM
22° / 29°
22° / 29°
Drizzle Dense Intensity
65% 24 km/h
21:00 PM
21° / 30°
21° / 30°
Drizzle
56% 20 km/h
22:00 PM
22° / 29°
22° / 29°
Drizzle
65% 20 km/h
23:00 PM
23° / 26°
23° / 26°
Mainly Clear
82% 16 km/h
00:00 AM
23° / 25°
23° / 25°
Mainly Clear
84% 9 km/h
01:00 AM
23° / 25°
23° / 25°
Clear Sky
87% 6 km/h
02:00 AM
22° / 24°
22° / 24°
Mainly Clear
88% 5 km/h
03:00 AM
22° / 24°
22° / 24°
Mainly Clear
89% 3 km/h

30 Day Averages and Extremes

  • Average high 30.43°C
  • Average low 20.73°C
  • Hottest day 32°C (20 July 2026)
  • Coldest day 19°C (15 August 2026)
  • Average humidity 79.8%
  • Days with precipitation 30 days
  • Highest precipitation 70 mm (24 July 2026)

Yesterday's Data

  • Max: 27°C
  • Min: 21°C
  • Total Precipitation: 14 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 30ºC (86.0ºF), consider wearing:
- High SPF sunscreen for outdoor activities
- Broad-brimmed sun hat
- Sleeveless tops or vests
- Lightweight, loose-fitting shorts

Temperature

Early
22°C / 23°C
Morning
21°C / 21°C
Afternoon
22°C / 24°C
Evening
21°C / 30°C

Air quality

Moderate

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

  • CO2 441
  • CO 125
  • NH3 0
  • NO2 0
  • O3 69
  • PM10 9
  • PM25 9
  • SO2 0
  • CH4 1,370

Sunrise / Sunset

11:19
23:07