Climate Insights for Berwyn

The climate in Berwyn is temperate. The average annual temperature is 14°C and approximately 1214mm of precipitation falls per year. Berwyn receives a notable amount of rainfall throughout the year, including during its driest month. Berwyn is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Agosto, Giugno. The coldest months are Gennaio, Febbraio, Dicembre, when temperatures can drop to -2°C. Snowfall occurs from January to December, with around 50cm accumulating over the season.

Temperatures in Berwyn vary considerably across the year, with a 32°C difference between the coldest and warmest months. The warmest month is Luglio, when average highs reach 30°C and the mean temperature sits around 26°C. The coldest month is Gennaio, when overnight lows fall to -2°C and the daily average is 2°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Berwyn is a fairly wet location, receiving approximately 1214mm of precipitation annually, which averages out to around 101mm per month. The wettest month is July, averaging 129mm of rainfall. August and June also tend to see above-average precipitation. The driest month is November, with just 75mm. That's 53mm less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 50cm accumulating over the season. March typically sees the most snow at around 15cm.

Berwyn is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 18km/h in winter, 18km/h in spring, 13km/h in summer, 15km/h in autumn.

It is currently winter in Berwyn, which began on December 21, 2026. Berwyn is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Luglio at around 30°C, while the coldest stretch bottoms out in Gennaio near -2°C. Spring is next, beginning on March 20, 2026 — 1 days from now.

The table below shows monthly climate averages for Berwyn based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.