Holywood Temperature by Month
The average annual maximum temperature in Holywood, Dumfries and Galloway, United Kingdom is 13°C (55°F), with daytime highs ranging from 7°C (45°F) in January to 19°C (66°F) in July. This page covers monthly averages, day-night differences, and how Holywood compares to cities worldwide.
Holywood Monthly Temperatures
Visitors to Holywood will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 11°C (52°F) in July to 2°C (36°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Holywood by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 151 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Holywood 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.
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Holywood vs World: Temperature Compared
Holywood's average annual maximum temperature is 13°C (55°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.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Holywood?
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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Holywood, January is the coolest month, with average highs of 7°C (45°F) and humidity around 88% — considered 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.
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 Holywood this rarely lasts long on the ground.
For more on Holywood's weather — including monthly rainfall, sunshine hours, and humidity — visit our Holywood climate page.
