Saint Johnʼs Temperature by Month
Saint Johnʼs in Antigua, Antigua & Barbuda enjoys a stable climate, with daytime temperatures staying close to 28°C (82°F) throughout the year. Explore the full monthly breakdown below.
Saint Johnʼs Monthly Temperatures
The temperature in Saint Johnʼs remains steady throughout the year, providing a consistently comfortable climate. Maximum daytime temperatures range from a comfortable 30°C (86°F) in August to a comfortable 27°C (81°F) in February. Nights are mild year-round, with lows ranging from 27°C (81°F) in August to 24°C (75°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Saint Johnʼs by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur 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 Saint Johnʼs Temperatures: 1976-2026
Browse day-by-day temperature records for Saint Johnʼs spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Saint Johnʼs 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
warm
pleasant
moderate
cold
very cold
Saint Johnʼs vs World: Temperature Compared
Saint Johnʼs'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.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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 Saint Johnʼs this rarely lasts long on the ground.
For more on Saint Johnʼs's weather — including monthly rainfall, sunshine hours, and humidity — visit our Saint Johnʼs climate page.
