Brunswick (GA) Temperature by Month
The average annual maximum temperature in Brunswick, Georgia, United States of America is 26°C (79°F), with daytime highs ranging from 17°C (63°F) in January to 33°C (91°F) in July. This page covers monthly averages, day-night differences, and how Brunswick compares to cities worldwide.
Brunswick Monthly Temperatures
Visitors to Brunswick can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 23°C (73°F) in July to 6°C (43°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Brunswick 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. July, the warmest month of the year, receives 281 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Brunswick 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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Brunswick vs World: Temperature Compared
Brunswick's average annual maximum temperature is 26°C (79°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Brunswick?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Brunswick, January is the coolest month, with average highs of 17°C (63°F) and humidity around 65% — considered high. In July, the warmest month, temperatures average 33°C (91°F) with 78% humidity — conditions that feel high. For a full picture, see our humidity page.
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 Brunswick's weather — including monthly rainfall, sunshine hours, and humidity — visit our Brunswick climate page.
