Aberystwyth Temperature by Month

Aberystwyth in Dyfed, United Kingdom sees moderate seasonal temperature shifts, with daytime highs between 9°C (48°F) in January and 19°C (66°F) in July, averaging 14°C (57°F) annually. Explore the full monthly breakdown below.

In Aberystwyth, seasonal changes bring about a moderate variation in temperatures. Nighttime lows range from 13°C (55°F) in July to 3°C (37°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Aberystwyth 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 155 hours of sunshine.

The chart below shows the average temperature throughout the year:

Aberystwyth's average annual maximum temperature is 14°C (57°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.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

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.

Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.

Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.

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