Copalis Beach (WA) Temperature by Month
The average annual maximum temperature in Copalis Beach, Washington State, United States of America is 14°C (57°F), with daytime highs ranging from 8°C (46°F) in December to 21°C (70°F) in August. This page covers monthly averages, day-night differences, and how Copalis Beach compares to cities worldwide.
Copalis Beach Monthly Temperatures
In Copalis Beach, temperatures can shift dramatically between pleasant in summer and cold in winter. Nights follow the same pattern, with lows ranging from 12°C (54°F) in August to 3°C (37°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Copalis Beach by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating.
The chart below shows the average temperature throughout the year:
Temperature: Copalis Beach vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Copalis Beach vs World: Temperature Compared
Copalis Beach's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Copalis Beach's weather — including monthly rainfall, sunshine hours, and humidity — visit our Copalis Beach climate page.
