Keelung

Stay informed about the latest weather conditions in Keelung. Below, you’ll find up-to-date data, detailed forecasts, and visual weather charts to help you plan your day.

Keelung, located on the island of Taiwan, welcomes visitors with a pleasant subtropical oceanic climate. This means the weather is predominantly warm and humid year-round, without sharp temperature fluctuations or severe frosts, making it a comfortable destination to visit in any season.

The city has two distinct main seasons. Summer, which lasts from roughly May to September, is characterized by warm weather with average temperatures ranging from 24.5°C to 28.6°C and high humidity. The hottest months are July and August. Winter, from December to February, is significantly milder: average temperatures stay between 15.7°C and 17.0°C, creating comfortable conditions for sightseeing. The spring (March-April) and autumn (October-November) months serve as pleasant transition periods with moderate temperatures.

One of the most notable features of Keelung's climate is the frequent probability of precipitation throughout the year. Although the total amount of rainfall is relatively small (from 3 to 9 mm per month), the number of rainy days is quite high, ranging from 15 to 22 per month. This indicates that light rain or drizzle is common, so travelers should be prepared for changeable weather and carry an umbrella or a light raincoat, especially in the autumn and winter months when the number of rainy days peaks.

The weather in Keelung is characterized by noticeable seasonal temperature fluctuations, though the climate remains relatively mild year-round. The hottest months are typically July, with an average temperature of 28.6°C and highs reaching 30.7°C, and August, with an average of 28.2°C and maximums of 30.2°C. The coolest period is January, when the average temperature drops to 15.7°C and night minimums are around 14.1°C. Overall, the annual average temperature range spans from approximately 15.7°C to 28.6°C.

Summer months in Keelung, especially from June to September, are consistently hot. Daytime temperatures regularly rise above 29°C, and during the peak of the season in July and August, they can exceed 30°C. Nights also remain warm, with minimum temperatures rarely falling below 25-26°C. Given the island location and frequent rain, summer is often accompanied by high humidity, which can make the heat feel more intense and create a muggy atmosphere.

Winter in Keelung, covering December, January, and February, is mild and cool, but without severe frosts. Average monthly temperatures fluctuate from 15.7°C in January to 17.0°C in December. Night temperatures in the coldest months drop to 14-15°C, while daytime highs usually stay around 17-18°C. Throughout the year, the difference between daytime highs and nighttime lows is relatively small, averaging just 2-4°C. This lack of sharp temperature drops between day and night provides a stable thermal environment throughout the 24-hour cycle.

Keelung has almost no distinct dry season, as precipitation occurs year-round. While the total number of rainy days remains high throughout the year, the volume of rainfall varies noticeably from month to month.

According to average monthly data, the highest amount of precipitation occurs in October, with up to 9 mm. September also stands out with higher rainfall (7 mm), while May, June, and December show moderate figures (6 mm each). The "driest" months by volume, despite the frequent rain, are March and April, with only 3 mm of precipitation recorded. January, February, July, and August also see relatively low rainfall (4 mm each).

In terms of frequency, rain remains a constant throughout the year. The record holder for rainy days is December (averaging 22 days), followed by October and November (20 days each). Even in the relatively "dry" months of March and April, it rains approximately 15 days a month—the minimum for Keelung. This suggests the city is characterized by frequent, often light or drizzling rain, which maintains high air humidity. Given the temperature range, snow does not occur here.

When planning a trip to Keelung, it's important to consider its specific climate. A key feature here is the high probability of precipitation year-round—the number of rainy days is significant even when the total rainfall volume is moderate. Therefore, a compact but sturdy umbrella and a light waterproof jacket or raincoat (preferably windproof, as coastal areas can be breezy) are essential items. Given the temperature fluctuations, layering is the best clothing strategy, allowing you to easily adapt to changes throughout the day. Don't forget comfortable, broken-in shoes for long walks around the city and its surroundings.

During the warm season, which in Keelung lasts from about May to September (average temperatures 24.5°C - 28.6°C), prioritize light, "breathable" clothing made from natural fabrics: cotton T-shirts, shorts, dresses, and skirts. Be sure to pack sunscreen with a high SPF, a hat or cap, and sunglasses to protect against UV rays, especially on clear days. Even if the sky is overcast, the sun in Taiwan can be quite strong.

For the cooler season, from late autumn to early spring (roughly November to March, with average temperatures of 15.7°C - 21°C), you'll need warmer items. Pack jeans or other sturdy trousers, long-sleeved shirts, sweaters, and fleece jackets. A light jacket to protect against wind and light rain will be very useful, particularly for evening walks. During transitional months like April and October, the weather can be unpredictable, so combining light pieces with a warm layer (like a cardigan or a thin jumper) is the most practical solution.