San Martín, Peru Weather

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

Current conditions

Updated:
22°C
71.6°F
°C °F

Condition: Drizzle

Pressure: 974 hPa

Feel like: 26 °C

Temperature: 22°C

Cloud: 15%

Humidity: 92%

Wind: WNW - 4 km/h

Visibility: 8.94 km

Weather forecast

Wed
05 Aug
21°C / 31°C
Moderate Drizzle
Thu
06 Aug
20°C / 32°C
Drizzle
Fri
07 Aug
20°C / 32°C
Mainly Clear
Sat
08 Aug
22°C / 32°C
Drizzle
Sun
09 Aug
21°C / 32°C
Moderate Drizzle
Hourly forecast today:
07:00 AM
21° / 22°
21° / 22°
Drizzle
92% 14 km/h
08:00 AM
21° / 22°
21° / 22°
Clear Sky
93% 10 km/h
09:00 AM
20° / 21°
20° / 21°
Mainly Clear
93% 7 km/h
10:00 AM
20° / 21°
20° / 21°
Mainly Clear
92% 7 km/h
11:00 AM
19° / 21°
19° / 21°
Clear Sky
90% 3 km/h
12:00 PM
20° / 22°
20° / 22°
Mainly Clear
87% 5 km/h
13:00 PM
20° / 23°
20° / 23°
Clear Sky
81% 10 km/h
14:00 PM
20° / 25°
20° / 25°
Clear Sky
72% 11 km/h
15:00 PM
20° / 27°
20° / 27°
Clear Sky
63% 13 km/h
16:00 PM
20° / 29°
20° / 29°
Clear Sky
56% 15 km/h
17:00 PM
19° / 30°
19° / 30°
Clear Sky
52% 16 km/h

30 Day Averages and Extremes

  • Average high 31.17°C
  • Average low 20.87°C
  • Hottest day 32°C (20 July 2026)
  • Coldest day 19°C (18 August 2026)
  • Average humidity 79.0%
  • Days with precipitation 30 days
  • Highest precipitation 70 mm (24 July 2026)

Yesterday's Data

  • Max: 30°C
  • Min: 22°C
  • Total Precipitation: 0 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 31ºC (87.8ºF), consider wearing:
- Airy sandals or flip-flops
- Ultra-thin, breathable socks
- Lightweight, loose-fitting shorts
- Light, natural fabrics (like cotton or linen)

Temperature

Early
21°C / 24°C
Morning
20°C / 21°C
Afternoon
20°C / 27°C
Evening
19°C / 31°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 551
  • CO 163
  • NH3 0
  • NO2 7
  • O3 22
  • PM10 8
  • PM25 7
  • SO2 0
  • CH4 1,373

Sunrise / Sunset

11:18
23:07