Castries Temperature by Month
Castries in Languedoc-Roussillon, France sees significant seasonal temperature differences, with daytime highs between 12°C (54°F) in January and 30°C (86°F) in July, averaging 21°C (70°F) annually. Explore the full monthly breakdown below.
Castries Monthly Temperatures
Visitors to Castries will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 19°C (66°F) in July to 4°C (39°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Castries by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. July, the warmest month, averages 340 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Castries 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
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moderate
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Castries vs World: Temperature Compared
Castries's average annual maximum temperature is 21°C (70°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.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Castries?
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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Castries, January is the coolest month, with average highs of 12°C (54°F) and humidity around 75% — considered high. In July, the warmest month, temperatures average 30°C (86°F) with 64% 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 Castries's weather — including monthly rainfall, sunshine hours, and humidity — visit our Castries climate page.
