Weather in Waterloo

Planning your day in the city of Waterloo? Check out the latest weather data and up-to-date forecasts right here to be prepared for any changes.

The climate in Waterloo is characterised as continental, with four clearly defined seasons. The city experiences significant temperature fluctuations throughout the year, which is typical for this type of climate. Visitors should be prepared for varied weather conditions depending on the time of their trip.

Winters in Waterloo are cold, with average monthly temperatures significantly below zero, especially in January and February, when minimums can drop to -10°C. Summers, on the other hand, are warm and pleasant; from June to August, average temperatures exceed 20°C, and maximums can reach nearly 28°C. Spring and autumn are transitional seasons with moderate temperatures that gradually rise in spring and fall in autumn.

As for precipitation, it is distributed quite evenly throughout the year, without a pronounced rainy season. A slight increase in precipitation is observed in May. The number of days with precipitation is also relatively constant, indicating frequent but generally not too heavy rain or snowfall during the winter period. Overall, the weather in Waterloo offers a classic experience of changing seasons.

Waterloo sees a distinct change of seasons with notable temperature fluctuations throughout the year. The coldest month is typically January, when the average temperature drops to -6.4°C, and nightly lows can reach -10.4°C. Conversely, the peak heat occurs in July, with an average temperature of +23.5°C and daytime highs often rising to +28.3°C. Thus, the annual temperature range in the city is quite significant, offering residents and guests both a true winter and a full-fledged summer.

The summer months in Waterloo, especially June, July, and August, are characterised by warm and sometimes hot weather. Average daytime temperatures during this period range from +27.3°C to +28.3°C, creating comfortable conditions for outdoor activities. Nights also remain warm, with minimum temperatures around +17.3°C - +18.7°C. The difference between day and night temperatures in summer is approximately 10-11°C, which is typical for this time of year.

Winter in Waterloo brings frosty weather. From December to February, average temperatures stay below zero, dropping in January and February to -5.0°C... -6.4°C. At night, the thermometer regularly shows from -5.2°C to -10.4°C, indicating the need for warm clothing. Daytime highs in winter rarely rise significantly above freezing, fluctuating from -2.5°C to +2.8°C. The transitional seasons, spring and autumn, demonstrate a gradual change in temperatures, with April and October also showing substantial daily temperature fluctuations – for instance, in April, the difference between the daytime high (+14.9°C) and the nightly low (+3.5°C) is more than 11 degrees.

Waterloo experiences a moderate amount of precipitation throughout the year, without a strictly defined rainy or dry season, although some months stand out in terms of precipitation volume and the number of rainy/snowy days. The highest amount of precipitation falls in May (an average of 5 mm), which is also the month with the highest number of days with precipitation — around 14. The driest months by precipitation volume are February and December, with only 1 mm falling in each.

The nature of precipitation in Waterloo changes depending on the season. In winter months, such as January and February, when average temperatures are significantly below freezing (around -6.4°C and -5.0°C respectively), precipitation predominantly falls as snow. December is also cold, and precipitation, though infrequent, is likely to be snowy. In transitional months, such as March (average temperature 3.5°C) and November (average temperature 3.8°C), both rain and snowfall are possible, especially in early March and late November. In the remaining months, from April to October, when temperatures are positive, precipitation falls as rain.

The frequency of precipitation is distributed fairly evenly throughout the year, with the exception of the peak in May. Most months have between 7 and 11 days with precipitation. For example, April and June have about 11 days with precipitation, while in July, August, September, and October, the number ranges from 9 to 10 days. The lowest number of days with precipitation occurs in December (6 days) and in February and November (7 days each).

When planning a trip to Waterloo, it is important to consider the climate with its distinct seasons. The key to comfort at any time of year is the layering principle. The weather can be changeable, especially in spring and autumn, so the ability to remove or add an extra layer of clothing will be very handy. Regardless of the season, be sure to bring comfortable walking shoes, as you will likely want to explore the city on foot.

During the warm season, from late spring to early autumn (May to September), the daytime temperature is quite comfortable and often hot. Pack light clothing: t-shirts, shorts, dresses, and sandals. However, evenings can be cool, so do not forget to bring a light jacket, cardigan, or hoodie. Rain is possible in summer, so a compact umbrella or raincoat will be a useful addition to your luggage. Sunscreen, a hat, and sunglasses will also come in handy for protection against the sun on clear days.

Winters in Waterloo (December to February) are cold, with temperatures significantly below freezing. For a winter trip, you will need warm clothing. Be sure to bring a warm waterproof jacket, sweaters or fleece tops, thermal underwear, and thick trousers. Do not forget winter accessories: a hat, scarf, and gloves. Given the likelihood of snow, the best choice would be waterproof winter boots with non-slip soles, which will keep your feet warm and dry.