Anacortes (WA) Temperature by Month
Anacortes in Washington State, United States of America sees significant seasonal temperature differences, with daytime highs between 7°C (45°F) in December and 23°C (73°F) in July, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.
Anacortes Monthly Temperatures
Visitors to Anacortes will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 12°C (54°F) in July to 2°C (36°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Anacortes by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 331 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Anacortes 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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Anacortes vs World: Temperature Compared
Anacortes's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
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 Anacortes's weather — including monthly rainfall, sunshine hours, and humidity — visit our Anacortes climate page.
