Gillingham Temperature by Month

The average annual maximum temperature in Gillingham, Kent, United Kingdom is 15°C (59°F), with daytime highs ranging from 9°C (48°F) in January to 23°C (73°F) in July. This page covers monthly averages, day-night differences, and how Gillingham compares to cities worldwide.

The climate in Gillingham is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 14°C (57°F) in July to 3°C (37°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Gillingham 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. July, the warmest month of the year, receives 202 hours of sunshine.

The chart below shows the average temperature throughout the year:

Gillingham'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:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

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 Gillingham this rarely lasts long on the ground.

For more on Gillingham's weather, including monthly rainfall, sunshine hours, and humidity, visit our Gillingham climate page.