Climate Insights for Keelung

The climate in Keelung is warm and mild. The average annual temperature is 23°C and approximately 2049mm of precipitation falls per year. Keelung receives a notable amount of rainfall throughout the year, including during its driest month. Keelung is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are February, January, December, when temperatures can drop to 16°C.

Keelung sees moderate temperature variation throughout the year, ranging from 16°C to 30°C. The warmest month is July, when average highs reach 30°C and the mean temperature sits around 29°C. February is the coolest month, with minimum temperatures around 16°C and an average of 17°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between November and December, with a 3°C shift in average temperatures.

Keelung is a very wet location, receiving approximately 2049mm of precipitation annually, which averages out to around 171mm per month. The wettest month is October, averaging 289mm of rainfall. December and November also tend to see above-average precipitation. The driest month is August, with just 101mm. That's 188mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Keelung is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 15km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 24km/h in winter, 17km/h in spring, 13km/h in summer, 23km/h in autumn.

It is currently summer in Keelung, which began on June 21, 2026. Keelung 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 July at around 30°C, while the coldest stretch bottoms out in February near 16°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The table below shows monthly climate averages for Keelung 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. 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.