Climate and monthly weather forecast
Kowloon, Hong Kong

Reflecting its location, Kowloon is characterized by a Humid subtropical climate with a dry winter, as classified by the Köppen climate system. This classification, Cwa, signals that this region experiences a significant level of rainfall throughout the year, excluding winter. Expressing this in numbers, the city is illuminated approximately from 10.8 hours to 13.5 hours daily and the sea temperature fluctuates between 18.9°C (66°F) and 29.1°C (84.4°F) during the year.

Throughout the year, weather patterns follow a consistent trend. The daylight hours gradually increase from 10.9 hours in January to a peak of 13.5 hours in June. Following this, there is a gradual decrease towards the end of the year. Sea temperatures showcase a similar pattern, albeit more pronounced. Starting from a cooler 19.1°C (66.4°F) in January, they rise steadily, culminating at the sweltering 29.1°C (84.4°F) in July, and then cooling off to 21°C (69.8°F) at the tail-end of the year in December. This indicates a clear relation between the daylight hours and sea temperatures, with both peaking in the middle of the year.

Within this yearly synopsis, certain patterns and anomalies become noticeable. Daylight hours have minor oscillation between 11.1 hours and 13.5 hours. On the contrary, sea temperatures show more variation, with the lowest being 18.9°C (66°F) in February and the highest 29.1°C (84.4°F) in July. The sheer difference of 10.2°C (50.4°F) is a distinct feature of Kowloon’s weather.

Given the overall climate parameters, the seasons with moderate temperatures and optimal daylight hours are the best for visiting Kowloon. Specifically, between April and June, when sea temperatures range from 22.8°C (73°F) to 28.4°C (83.1°F) and the city enjoys between 12.7 hours and 13.5 hours of daylight. This period gives tourists an ample window to savor the scenic beauty of Kowloon while enjoying pleasant weather.

On the contrary, the chilly sea temperatures between 18.9°C (66°F) and 21°C (69.8°F) from January to March, combined with relatively shorter daylight hours between 10.8 hours and 12 hours, give fewer opportunities for activities. Thus, this period may not be the most ideal for a visit to Kowloon.

Springtime in Kowloon, from March to May, witnesses an escalation in both daylight and sea temperature. Specifically, daylight gradually rises from 12 hours to 13.2 hours, whereas sea temperatures warm up from 20.2°C (68.4°F) to 26.8°C (80.2°F). This combination of sufficient daylight and amiable sea temperature ordains spring as a comfortable season.

Summer in Kowloon, from June to August, is marked by the highest sea temperatures of the year, moving from 28.4°C (83.1°F) to 28.7°C (83.7°F). Accompanying this is the longest daylight of the year, from 13.5 hours to 12.9 hours. This makes summer an extremely inviting season, especially for water-related recreational activities.

Autumn weather, from September to November, witnesses a decline in both sea temperatures and daylight hours. Precisely, the sea temperature drops from 28.3°C (82.9°F) to 24.3°C (75.7°F) and daylight hours lessen from 12.3 hours to 11.1 hours. The drop in temperature and light during autumn brings forth a different, serene ambiance to Kowloon.

Winter in Kowloon is relatively milder with sea temperatures descending from 21°C (69.8°F) to 19.1°C (66.4°F) between December and February. The daylight hours during this season recede from 10.8 hours to 10.9 hours. While the lower temperatures and slimmer daylight might deter some, they contribute to a quiet charm unique to Kowloon's winters.

With an average sea temperature of 19.1°C (66.4°F), January records some of the lowest values in Kowloon. This makes it a rather chilly time for water activities around the region. In comparison to December, the daylight hours increase slightly, signalling the slow but steady shift towards warmer seasons. Weather in January »

Sea temperatures in February display a minimal decrease from January, setting the final trends of the wintry chill in Kowloon's climate. During this month, the daylight duration increases as days gradually become longer. As compared to January, there are distinct transitions in weather patterns, with an emphasis on a more temperate climate. Weather in February »

With a sea temperature that climbs to 20.2°C (68.4°F), March marks a noticeable rise from the previous month. This warming trend reveals the onset of spring in Kowloon. The weather is comfortably cool, with just the right amount of sunshine as the daylight hours increase noticeably. Weather in March »

April brings a significant rise in sea temperature, reaching an average of 22.8°C (73°F). The increase in temperature is reflective of the steady advancement into the warmer months. The lengthening of daylight hours continues to offer ideal conditions for outdoor activities. Weather in April »

May's sea temperature rises to a balmy 26.8°C (80.2°F), reflecting the clear transition towards the height of summer. The increased temperatures and lengthening daylight hours create a warm and welcoming ambiance across Kowloon. This month delights residents and visitors alike with brilliantly sunny days, balanced with occasional bouts of refreshing showers. Weather in May »

The sea temperature peaks at 28.4°C (83.1°F) in June, signifying the middle of the hot season. The daylight hours also reach their maxima, resulting in long, bright days. Despite the heat, there is a certain charm to Kowloon's June weather. Weather in June »

July sees the sea temperature peaking at 29.1°C (84.4°F), the highest recorded in the whole year. As daylight hours remain at their longest, the city experiences consistent hot and humid condition throughout the days. Despite the high temperatures, Kowloon’s active lifestyle continues unabated, fueled by the vibrant spirit of summer. Weather in July »

August experiences a mild decline in sea temperature to 28.7°C (83.7°F). While daylight hours start to decrease, summer in Kowloon still retains its warmth and vibrancy. The transition towards the less heated months becomes subtly evident as the month progresses. Weather in August »

September marks a further drop in sea temperature to 28.3°C (82.9°F). The daylight duration also reduces gradually, symbolizing a slow but sure step towards fall. As the hot summer peels off, a distinctly pleasant and welcoming tone starts to take over the climate. Weather in September »

The sea temperature decreases to a moderate 26.5°C (79.7°F) in October. With reducing daylight hours, the onset of fall becomes more pronounced across Kowloon. The region becomes a sight to behold, adorned with the hues of fall. Weather in October »

November comes with a further drop in sea temperature to 24.3°C (75.7°F). Daylight hours decrease, setting the stage for an incoming winter season. The weather, overall, is calmer with a noticeable chill in the air, especially towards the end of the month. Weather in November »

December sees the sea temperature dropping further to 21°C (69.8°F). The progression into the cooler season is quite visible, with daylight time also at its yearly minimum. As the days shorten and temperatures continue to fall, the winter season in Kowloon comes in full swing. Weather in December »