Cap Estate Temperature by Month

Cap Estate, Saint Lucia has a consistently comfortable climate year-round, with daytime highs averaging 29°C (84°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

With minimal seasonal shifts, Cap Estate experiences a constant climate year-round. Maximum daytime temperatures range from a very warm 30°C (86°F) in September to a comfortable 28°C (82°F) in January. At night, temperatures range from 26°C (79°F) in September to 24°C (75°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Cap Estate by month:

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. September, the city's warmest month, averages 238 hours of sunshine.

The chart below shows the average temperature throughout the year:

Cap Estate's average annual maximum temperature is 29°C (84°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.

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.

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 Cap Estate, January is the coolest month, with average highs of 28°C (82°F) and humidity around 80%, considered very high. In September, the warmest month, temperatures average 30°C (86°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 Cap Estate's weather, including monthly rainfall, sunshine hours, and humidity, visit our Cap Estate climate page.