Jolly Harbour Temperature by Month
The average annual maximum temperature in Jolly Harbour, Antigua, Antigua & Barbuda is 28°C (82°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Jolly Harbour compares to cities worldwide.
Jolly Harbour Monthly Temperatures
The temperature in Jolly Harbour remains steady throughout the year, providing a consistently comfortable climate. Maximum daytime temperatures range from a comfortable 30°C (86°F) in September to a comfortable 27°C (81°F) in February. Nights are mild year-round, with lows ranging from 27°C (81°F) in September to 24°C (75°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Jolly Harbour by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
48-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Jolly Harbour Temperatures: 1976-2026
Browse day-by-day temperature records for Jolly Harbour spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Jolly Harbour vs Antigua & Barbuda
The map below shows the annual temperature across Antigua & Barbuda. You can also select individual months if you want to compare a specific time of year.
very warm
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pleasant
moderate
cold
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Jolly Harbour vs World: Temperature Compared
Jolly Harbour's average annual maximum temperature is 28°C (82°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.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Jolly Harbour this rarely lasts long on the ground.
For more on Jolly Harbour's weather — including monthly rainfall, sunshine hours, and humidity — visit our Jolly Harbour climate page.
