Saint John Temperature by Month
Saint John in Saint John, US Virgin Islands enjoys a stable climate, with daytime temperatures staying close to 28°C (82°F) throughout the year. Explore the full monthly breakdown below.
Saint John Monthly Temperatures
In Saint John temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a comfortable 27°C (81°F) in February to a comfortable 30°C (86°F) in September. Nighttime lows range 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 Saint John 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.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
49-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 John Temperatures: 1976-2026
Browse day-by-day temperature records for Saint John spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Saint John vs US Virgin Islands
The map below shows the annual temperature across US Virgin Islands. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
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Saint John vs World: Temperature Compared
Saint John'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.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
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.
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 Saint John's weather — including monthly rainfall, sunshine hours, and humidity — visit our Saint John climate page.
