Sunderland

Planning your day in Sunderland? In this section, you'll find the latest weather information, including detailed forecasts and handy charts to help you stay prepared for whatever nature has in store.

Sunderland's climate, like much of the UK, is temperate maritime. This means there are no extreme temperature swings; summers are generally mild, and winters are soft, without severe frosts. The weather can be quite changeable, so it's always wise to be ready for the unexpected.

Sunderland has four distinct seasons. Winter (December-February) is cool, with average temperatures around 4-6°C. Spring (March-May) brings gradual warming, and by May, the average temperature reaches 11°C. Summer (June-August) is mild and comfortable, with averages around 14-16°C, rarely exceeding 19-20°C. Autumn (September-November) is characterized by a gradual drop in temperature and an increase in overcast days.

One of the defining features of Sunderland's weather is frequent rainfall throughout the year, although the total amount is modest (averaging 2-3 mm per month). However, the number of rainy days is significant – between 11 and 16 per month. This means light rain or drizzle can be common companions, so having an umbrella or a waterproof jacket will come in handy any time of year.

The climate in Sunderland is characterized by moderate temperatures throughout the year, without sharp fluctuations between extreme heat and severe cold. The annual temperature range is quite stable. The warmest months are traditionally July, with an average temperature of 15.9°C (ranging from 12.6°C to 19.3°C), and August with an average of 15.7°C (12.5°C to 19.0°C). Conversely, the coldest months are January, where the average temperature sits at 4.7°C (from 2.6°C at night to 6.8°C during the day), and December with an average of 5.3°C (3.4°C to 7.3°C).

The summer period in Sunderland, covering June, July, and August, offers pleasantly warm weather. Average daytime highs in these months range from 17.5°C in June to 19.3°C in July. Nights remain quite cool, with lows between 10.7°C and 12.6°C. This creates comfortable conditions for relaxation without exhausting heat. May can also be considered the precursor to summer, with an average temperature of 11.3°C and highs reaching 15.0°C.

Winter months, including December, January, and February, are cool yet mild. Average temperatures in this period range from 4.7°C in January to 5.6°C in February. Nighttime temperatures can drop to 2.6°C - 3.4°C, occasionally leading to light frosts, but severe freezes are not typical for the region. Daytime highs in winter usually fall within 6.8°C - 9.2°C (including March). Temperature fluctuations between day and night are not very significant, averaging between 4°C and 7°C, which is typical for a maritime climate. For example, in May, the difference between the average high (15.0°C) and low (7.7°C) is about 7.3°C, whereas in December, the gap is smaller at about 3.9°C (7.3°C high and 3.4°C low).

Precipitation in Sunderland is distributed fairly evenly throughout the year, with no distinct rainy or dry season. The total monthly rainfall is low, suggesting a prevalence of light or moderate rain rather than heavy downpours.

The highest rainfall, though only slightly above average, occurs in July and October at 3 mm each. October also stands out with the highest number of rainy days — averaging 16. It is followed by March and July, which see about 15 days of precipitation. The fewest rainy days occur in April and June — roughly 11 days each — though the volume remains at 2 mm, consistent with most other months.

Given average winter temperatures (e.g., January averages 4.7°C with lows around 2.6°C), precipitation in cold months, particularly from December to February, may fall as snow or sleet. However, based on the low overall precipitation levels, heavy snowfall is unlikely; it's more likely to be light snow or frost.

When planning a trip to Sunderland, it's important to consider its temperate maritime climate, known for frequent rainfall and changeable weather year-round. The key packing principle should be layering. A high-quality waterproof and windproof jacket is essential, as rainy days are frequent (11 to 16 per month), even if total precipitation is low. Don't forget an umbrella and comfortable waterproof shoes for exploring the city and its surroundings, which are a joy to discover on foot.

In the winter months (December to March), when average temperatures range from 4.7°C to 6.3°C, you'll need warm clothes: sweaters, fleeces, perhaps thermal layers, as well as a hat, gloves, and a scarf. In spring (April-May) and autumn (September-November), the weather remains cool (averages from 7.3°C to 13.5°C), so layers, including light jackets and jumpers, are perfect. In summer (June-August), temperatures rise to an average of 14-16°C; it can be pleasantly warm during the day, but evenings often feel cool. Therefore, even in summer, it's worth carrying a light jacket or sweater. Although the sun may not be as intense as in southern latitudes, sunscreen is useful on clear summer days.

Regardless of the season, it’s always helpful to have versatile items you can combine. A light scarf can be handy in summer to block the wind and in winter for extra warmth. Given the high chance of rain, quick-drying clothes are also a practical choice. Most importantly, be prepared for Sunderland's weather to change several times a day; a well-thought-out wardrobe will make your journey comfortable and enjoyable.