Guéthary Temperature by Month
Guéthary, Aquitaine, France has an average annual maximum temperature of 18°C (64°F), ranging from 13°C (55°F) in February to 25°C (77°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Guéthary Monthly Temperatures
The climate in Guéthary is dynamic, ranging widely from moderate in winter to comfortable in summer. Nights are significantly colder, with lows dropping from 18°C (64°F) in August to 6°C (43°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Guéthary by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 208 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Guéthary vs France
The map below shows the annual temperature across France. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Guéthary vs World: Temperature Compared
Guéthary's average annual maximum temperature is 18°C (64°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.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot 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 Guéthary?
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 Guéthary, February is the coolest month, with average highs of 13°C (55°F) and humidity around 76% — considered high. In August, the warmest month, temperatures average 25°C (77°F) with 81% humidity — conditions that feel very 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.
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 Guéthary's weather — including monthly rainfall, sunshine hours, and humidity — visit our Guéthary climate page.
