Weymouth Temperature by Month
Weymouth in Dorset, United Kingdom sees moderate seasonal temperature shifts, with daytime highs between 10°C (50°F) in February and 20°C (68°F) in August, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.
Weymouth Monthly Temperatures
In Weymouth, seasonal changes bring about a moderate variation in temperatures. Nighttime lows range from 15°C (59°F) in August to 5°C (41°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Weymouth by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. August, the warmest month of the year, receives 210 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-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 Weymouth Temperatures: 1976-2026
Browse day-by-day temperature records for Weymouth spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Weymouth vs the United Kingdom
The map below shows the annual temperature across the United Kingdom. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Weymouth vs World: Temperature Compared
Weymouth's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
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 Weymouth this rarely lasts long on the ground.
For more on Weymouth's weather — including monthly rainfall, sunshine hours, and humidity — visit our Weymouth climate page.
