Seal Beach (CA) Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Seal Beach’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in the United States of America.
Monthly Temperature Averages
Seasonal changes in Seal Beach bring a little variety without extreme temperature swings. Average maximum daytime temperatures reach a comfortable 26°C in September. In December, the coolest month of the year, temperatures drop to a pleasant 19°C. At night, minimum temperatures can drop even lower, averaging around 8°C.
The chart below illustrates the average maximum day and minimum night temperatures in Seal Beach by month:
The lowest temperatures typically occur between 4 AM and 6 AM, while the peak temperatures are generally observed around 3 PM, when the sun's heating is most intense. September, the city’s warmest month, enjoys 278 hours of sunshine.
The chart below shows the average temperature throughout the year:
December, the city’s coldest month, receives about 55 mm of rainfall spread over roughly 8 days. For more information, please visit our Seal Beach Precipitation page.
Annual Temperatures in the United States of America Compared
The map below shows the annual temperature across the United States of America. You can also select the different months in case you are interested in a specific month.
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Seal Beach Temperatures Compared World Wide
Seal Beach’s average annual maximum temperature is 22°C. Let’s compare this with some popular tourist destinations:
In Barcelona, Spain, the average annual temperature is around 21°C, resulting in warm summers and mild winters throughout the year.
In contrast, in Zermatt, Switzerland, the average annual temperature is significantly lower at 4°C, with mild summers and very cold winters.
In Shanghai, China, the annual average temperature is 21°C, offering warm summers and mild winters.
In Tokyo, Japan, the average annual temperature is 21°C, expect warmer summers and milder winters.
How does the temperature feel?
Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.
In Seal Beach, during the coolest month, December, you will experience 52% humidity, which is considered moderate. This is accompanied by an average maximum temperature of 19°C. In the warmest month, September, the humidity is 67% combined with an average maximum temperature of 26°C, which creates a high-feel temperature. Explore our detailed page on humidity levels for further details.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Sea vs. Land Temperatures
The influence of nearby oceans or large water bodies significantly affects local temperatures:
- Ocean Influence: Coastal regions tend to have more stable temperatures, as large bodies of water absorb and release heat slowly. This often results in milder winters and cooler summers compared to inland areas.
- Continental Climates: Landmasses well away from large bodies of water tend to show greater extremes in temperature, having hotter summers and colder winters because of the absence of water as a moderating influence.
For more detailed information about Seal Beach’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Seal Beach climate page.
Current temperature in Seal Beach (CA)
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