San Pedro, California Weather History

California, United States  •  45 yrs data 📍 33.7383°N, 118.2922°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Sep
Avg 72.8°F
Min 61.8°F
Max 83.8°F
Coldest Month
❄️
Jan
Avg 60.3°F
Min 48.3°F
Max 72.3°F
Wettest Month
🌧️
Feb
79 mm
Driest Month
🏜️
Jul
1 mm
Most Humid
💧
May
77%
Least Humid
🌬️
Nov
66%
Highest Ever
🌡️
96.4°F
Sep 1988
Lowest Ever
🧊
40.5°F
Dec 1990
Monthly Climate Data
Month 🌤️ High Low Avg Humid % Rain (mm) Wind (m/s) Solar (kWh/m²)

Showing average climate conditions across 45 years (1981–2025)

🌍 Weather in San Pedro Across Seasons

❄️ Winter in San Pedro

January is San Pedro's coldest month, with average lows reaching 48.4°F.
🌡️ December to February (avg)  ·  48.7°F72°F

🧥 Light layers are sufficient — this Mild Winter stays cool without prolonged hard freezes.

☀️ Summer in San Pedro

Summer temperatures in San Pedro peak in September, climbing to 83.8°F.
🌡️ August to October (avg)  ·  61°F82.6°F

🌤️ Conditions are ideal for outdoor activities throughout the day in this Mild Summer.

🌧️ Rainiest Period in San Pedro

San Pedro sees its highest rainfall in February, receiving approximately 79 mm of precipitation.
🌧️ December to February (avg)  ·  up to 79 mm

☔ Rainfall is spread across the year with no sharply defined wet season.

📅 Monthly Averages

🌡️ Temperature Patterns

Monthly averages · 1981–2025 climate normals · °F

🌡️ San Pedro Monthly Temperature Guide

Sep is the hottest month in San Pedro, with average highs reaching 83.8°F, while Jan is the coldest with lows dropping to 48.3°F.

Temperatures rise steadily from spring, peak in Sep, and gradually decline through fall into winter.

These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.

🌧️ Rainfall Distribution

Monthly rainfall · 1981–2025 seasonal trends · mm/month

💨 Humidity & Wind Speed

Monthly averages · 1981–2025

💧 Rainfall & Humidity in San Pedro

San Pedro receives its highest rainfall in Feb, while humidity peaks in spring.
🌧️ Wettest: Feb — 79 mm ☀️ Driest: Jul — 1 mm

💧 Humidity peaks at 77% in May · annual avg 73%

🌍 Climate Summary

Avg Annual Temp:65.7°F
Avg Annual Rainfall:342 mm
Avg Humidity:73%
Data Period:1981 – 2025

San Pedro Climate Overview

San Pedro has a warm subtropical climate with warm summers and mild winters.

Temperatures peak in Sep and drop to their lowest in Jan, while rainfall is highest during winter months.

Humidity remains moderate throughout the year, especially in spring, creating warm and humid conditions.

📈 Yearly Trends

The warmest year in San Pedro's recorded history was 2014 (avg: 68.9°F), while the coldest year was 1982 (avg: 63.7°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

Average annual high/low · Last 10 years · °F

San Pedro's temperatures has remained relatively stable over the past decade. The highest recorded temperature reached 96.4°F in Sep 1988, while the lowest dropped to 40.5°F in Dec 1990.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in San Pedro shows noticeable variation. Rainfall varies year-to-year without a clear long-term trend.
📋 Yearly Climate Data Overview

🔥 hottest  ·  ❄️ coldest  ·  🌧️ wettest

Year Min Temp Avg Temp Max Temp Rainfall (mm) Avg Humidity Avg Wind

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❓ Frequently Asked Questions

What is the hottest month in San Pedro?
Based on 45 years of data (1981–2025), Sep is typically the hottest month in San Pedro, California, with average high temperatures around 83.8°F.
What is the coldest month in San Pedro?
Jan is the coldest month in San Pedro, with average low temperatures around 48.3°F.
What is the rainiest month in San Pedro?
Feb receives the most rainfall with approximately 79 mm, while Jul is the driest with 1 mm.
What was the highest temperature ever recorded in San Pedro?
The highest recorded temperature was 96.4°F in Sep 1988. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in San Pedro?
The lowest recorded temperature was 40.5°F in Dec 1990.
How many years of data does this page cover?
This page covers 45 years of climate data from 1981 to 2025. As new data is added to the database the page automatically reflects the updated coverage.
How much sunlight does San Pedro get?
San Pedro receives the most sunlight in Jul with an average solar radiation of 6.53 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in California.
Where does this weather data come from?
All climate data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite and model data. It provides monthly averages for temperature, precipitation, humidity, wind speed, and solar radiation.

📚 Data Source

All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.

Parameters included:
  • Temperature (Min, Max)
  • Precipitation
  • Relative Humidity
  • Wind Speed
  • Solar Radiation
Data specifications:
  • Resolution: Monthly
  • Spatial: 0.5° × 0.625°
  • Source: MERRA-2
  • Coverage: 1981–2025
  • Years: 45