San Martín, Peru Weather

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

Current conditions

Updated:
21°C
69.8°F
°C °F

Condition: Slight Rain Showers

Pressure: 977 hPa

Feel like: 25 °C

Temperature: 21°C

Cloud: 100%

Humidity: 97%

Wind: SSE - 1 km/h

Visibility: 24.14 km

Weather forecast

Wed
18 Feb
20°C / 28°C
Fog
Thu
19 Feb
19°C / 33°C
Moderate Drizzle
Fri
20 Feb
20°C / 29°C
Moderate Drizzle
Sat
21 Feb
20°C / 26°C
Overcast
Sun
22 Feb
20°C / 31°C
Moderate Drizzle
Hourly forecast today:
12:00 PM
21° / 21°
21° / 21°
Slight Rain Showers
97% 5 km/h
13:00 PM
21° / 21°
21° / 21°
Slight Rain Showers
96% 5 km/h
14:00 PM
21° / 22°
21° / 22°
Slight Rain Showers
94% 6 km/h
15:00 PM
21° / 22°
21° / 22°
Slight Rain Showers
92% 7 km/h
16:00 PM
21° / 23°
21° / 23°
Slight Thunderstorm
92% 9 km/h
17:00 PM
21° / 22°
21° / 22°
Slight Thunderstorm
92% 11 km/h
18:00 PM
21° / 22°
21° / 22°
Slight Thunderstorm
92% 12 km/h
19:00 PM
21° / 23°
21° / 23°
Overcast
90% 11 km/h
20:00 PM
21° / 23°
21° / 23°
Overcast
87% 7 km/h
21:00 PM
21° / 23°
21° / 23°
Overcast
86% 5 km/h
22:00 PM
21° / 23°
21° / 23°
Overcast
88% 5 km/h

30 Day Averages and Extremes

  • Average high 27.53°C
  • Average low 20.77°C
  • Hottest day 33°C (19 February 2026)
  • Coldest day 19°C (19 February 2026)
  • Average humidity 87.8%
  • Days with precipitation 30 days
  • Highest precipitation 81 mm (28 January 2026)

Yesterday's Data

  • Max: 26°C
  • Min: 20°C
  • Total Precipitation: 2 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 warm weather in San Martín, with temperatures between 20ºC to 23ºC (68.0ºF to 73.4ºF), you might consider wearing:
- Sunglasses
- Sunscreen (if spending time outdoors)
- T-shirt or short-sleeve blouse
- Sun hat or cap

Temperature

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

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 0
  • CO 0
  • NH3 0
  • NO2 0
  • O3 0
  • PM10 0
  • PM25 0
  • SO2 0
  • CH4 0

Sunrise / Sunset

11:11
23:30