Long Beach (WA) Temperature by Month
The average annual maximum temperature in Long Beach, Washington State, United States of America is 14°C (57°F), with daytime highs ranging from 9°C (48°F) in December to 19°C (66°F) in August. This page covers monthly averages, day-night differences, and how Long Beach compares to cities worldwide.
Long Beach Monthly Temperatures
The moderate changes in the climate in Long Beach ensure gradual weather shifts through each season. At night, temperatures drop to between 12°C (54°F) and 2°C (36°F) depending on the time of year.
The chart below illustrates the average maximum day and minimum night temperatures in Long Beach by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. August, the city's warmest month, gets 299 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Long 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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Long Beach vs World: Temperature Compared
Long 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:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
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.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Long Beach's weather — including monthly rainfall, sunshine hours, and humidity — visit our Long Beach climate page.
