Tukwila

Planning your day in Tukwila? Here you will find the latest weather information, including current data, forecasts, and helpful charts, to make your stay as comfortable as possible.

The climate in Tukwila, USA, can be described as temperate marine. The city experiences distinct seasonal changes, with mild, wet winters and warm, relatively dry summers. Overall, the weather is comfortable enough for visiting throughout most of the year, though you should be prepared for precipitation, especially during the colder months.

Winters in Tukwila (December–February) are cool, with average temperatures around 5–6°C and frequent rain—January is the wettest month with the highest number of rainy days. Spring (March–May) brings gradual warming and a decrease in precipitation. Summer (June–August) is the warmest and sunniest time of year, especially July and August, when average temperatures reach 20°C and rainfall is minimal. Autumn (September–November) is characterized by a gradual cooling and an increase in rain, preparing the city for the winter season.

The most notable feature of Tukwila's climate is the pronounced contrast between the wet winter period (from November to January–February, when the highest number of days with precipitation occurs) and the dry summer season (especially July and August). Despite the frequency of precipitation in the winter months, the total amount is not extremely high, suggesting prolonged drizzling rain rather than heavy downpours. Temperature fluctuations throughout the year are moderate, without sharp changes.

Tukwila experiences a temperate climate with noticeable seasonal temperature fluctuations. The annual temperature range is quite broad: from cool winters to warm summers. The hottest months are typically July and August, when average daytime temperatures reach 20.2°C and 20.5°C respectively, with maximum values climbing to 25.5–25.7°C. The coldest month is usually February, with an average temperature of 5.1°C and nightly lows around 2.4°C, though December and January are also quite cool.

Summer months in Tukwila, from June to August, are characterized by pleasantly warm weather. Average temperatures range from 16.7°C in June to 20.5°C in August. Daytime highs in July and August consistently exceed 25°C, creating comfortable conditions for outdoor activities. At the same time, there are noticeable diurnal temperature fluctuations: nights are significantly cooler than days, with a difference between the maximum and minimum temperature of about 10–11°C. For example, in August, the average maximum is 25.7°C, while the average minimum is 15.3°C.

Winter in Tukwila, covering the period from December to February, is cool but not freezing. Average temperatures during these months stay within the range of 5.1°C to 6.0°C. At night, the temperature drops to 2.4–3.6°C, while during the day it rises to 7.6–8.4°C. Diurnal temperature fluctuations in winter are less pronounced than in summer, at approximately 4–5°C. Spring and autumn are transitional seasons with a gradual increase or decrease in temperature, offering mild and comfortable weather for visiting the city.

The city of Tukwila has a fairly clear division between wet and dry seasons, though total annual precipitation remains moderate. Winter months and late autumn are characterized by a higher probability of rain, while summer brings significantly drier weather.

The wettest period in Tukwila occurs from late autumn to early spring. January stands out as the rainiest month, with an average of about 7 mm of precipitation and approximately 21 rainy days. December and November are also quite wet, with 6 mm of precipitation and 19 and 18 rainy days respectively. Given the high number of rainy days despite moderate total volume, the precipitation at this time is likely frequent but not overly intense rain or drizzle. February and October also see notable precipitation, around 4 mm, with 18 and 15 rainy days respectively.

The dry season in Tukwila is most pronounced in summer. July and August are the driest months, with only about 1 mm of precipitation and rainy days dropping to 4–6. May, June, and September also see light precipitation (around 2 mm), with the number of rainy days ranging from 10 to 12. This means that summer months offer significantly more sunny days with a minimal chance of rain disrupting your plans.

When planning a trip to Tukwila, it is important to consider the changeable weather, particularly the high number of rainy days throughout much of the year. From October to April, cool and damp weather prevails, with average temperatures ranging from 5°C to 12°C. During these months, especially from November to February when rainy days can reach 18–21 per month, you will definitely need warm clothes, a waterproof jacket or raincoat, and an umbrella. Don't forget comfortable waterproof shoes, as frequent—though not always heavy—showers can make walking less pleasant. Layering will be your best ally, allowing you to easily adapt to temperature changes throughout the day.

From May to September, Tukwila becomes noticeably warmer and sunnier. Average temperatures during this period range from 14°C to 20°C, and in July and August, they can reach a comfortable 25°C, with minimal precipitation. For this time of year, light clothing such as T-shirts, shorts, and dresses is suitable. However, even in summer, evenings can be quite cool, so it's a good idea to bring a light sweater or windbreaker. On sunny days, be sure to use sunscreen and don't forget a hat and sunglasses. Regardless of the season, comfortable walking shoes are an absolute necessity for exploring the city and its surroundings with ease.