Climate and monthly weather forecast
Hwaseong, South Korea

Situated in South Korea, Hwaseong falls under the Cwa category of the Köppen climate classification, portraying a humid subtropical climate marked by dry winters. The seasonal shifts in this region reflect in its temperature and daylight patterns throughout the year. A peek into the yearly climatology reveals the varying nature of the weather parameters with noticeable disparities in each one.

Taking sea temperatures into consideration, the lowest average dips to 3.3°C (37.9°F) in February, clearly indicating the coastal chill during the winter season. On the flip side, the summer months from June to September reveal considerably warmer sea temperatures scaling from 18.7°C (65.7°F) to a high of 23.4°C (74.1°F) in August.

A scrutiny of daylight hours displays a similar pattern. January sees the least daylight with an average of 9.9 hours, while June enjoys the maximum daylight averaging 14.7 hours, almost half a day. Substantial fluctuations in the length of the day are witnessed from January to June, after which a gradual decrease ensues until December.

Specifically noteworthy is the fairly stable daylight duration from May to July, averaging between 14.2 and 14.7 hours. This pattern starkly contrasts with the rapid changes observed in other months.

Given the warmer sea temperatures and extended daylight hours, the best time to visit Hwaseong can be placed from June to September. This period provides a generous amount of sunlight with daylight hours ranging from 14.2 to 14.4 hours. Average sea temperatures during this period fall within a comfortable 18.7°C (65.7°F) to 23.4°C (74.1°F), inviting visitors for a pleasant beach experience.

In contrast, the colder months from December to March make up an unsuitable period to visit Hwaseong. During this time, the shortest daylight period is confined to January with just 9.9 hours. Simultaneously, sea temperatures drop dramatically to a chilly 5°C (41°F) in January and a frigid 3.3°C (37.9°F) in February. The cold seas coupled with diminished daylight hours make these months less inviting for tourists.

Spring in Hwaseong, lasting from March to May, is characterized by mild sea temperatures and increasing daylight hours. During this period, the sea temperature advances from 4.1°C (39.4°F) in March to a more agreeable 13.3°C (55.9°F) in May. At the same time, daylight hours increase from 12 hours in March to approximately 14.2 hours by May, ensuring ample sunlight for visitors in the city.

Resident from June to August, Summer in Hwaseong witnesses the highest sea temperatures and averages the longest daylight hours of the year. Comfortable sea temperatures oscillate from 18.7°C (65.7°F) in June to a maximum of 23.4°C (74.1°F) in August. The longest day falls in June with an impressive 14.7 hours of daylight, encouraging a wealth of outdoor activities.

Autumn descends on Hwaseong from September to November. Despite the start of a downward trend in sea temperatures and daylight hours, this period remains quite pleasant. Sea temperatures range from a high of 21.9°C (71.4°F) in September to a mild 13.8°C (56.8°F) in November. Daylight hours follow suit, reducing from 12.4 hours in September to roughly 10.2 hours by November.

Hwaseong's winter ushers in the coldest sea temperatures and shortest daylight hours. From December through February, sea temperatures dip drastically from 8.8°C (47.8°F) down to a chilly 3.3°C (37.9°F). Corresponding daylight hours average from 9.9 hours in December down to 9.6 hours in January, making it the period with the least amount of daylight.

January greets Hwaseong, South Korea, with the chilliest sea temperature averaging the lowest at 5°C (41°F). The shorter days of winter offer a sunlight duration average of 9.9 hours, which is the lowest annual daylight measure. Weather in January »

Despite an increase in sunlight duration to 10.8 hours for February, Hwaseong weather develops a quirk with the drop in the sea temperature to 3.3°C (37.9°F), the coldest of the year. Such unique patterns create natural phenomena, leading to the freezing over of many sea spaces. Weather in February »

As winter makes its exit, March brings about a positive change in Hwaseong's weather conditions. With sea temperatures climbing to a warmer 4.1°C (39.4°F) and daylight stretching to 12 hours, the weather starts stabilizing. A slow but noticeable increase in temperature indicates the onset of spring. Weather in March »

In April, Hwaseong witnesses a significant jump in sea temperature to 8.4°C (47.1°F), a sign of the warming trend of spring. The city experiences more sunlight, with daylight hours increased to 13.2. With the continuous retreat of the cold, the landscapes start transforming, swapping white snow for blossoming flowers. Weather in April »

May in Hwaseong brings further pleasant weather conditions. The sea temperature gradually increases to reach 13.3°C (55.9°F) as the city steps further into the embrace of spring. The climate remains favorable for a range of outdoor activities, boosting tourism in the city. Weather in May »

Hwaseong ushers in the summer with an impressive increase in average sea temperature to 18.7°C (65.7°F). Daylight in June, reaching its yearly maximum of 14.7 hours, aligns with the summer solstice. Days filled with sunshine become perfect for beach visits and water sports activities. Weather in June »

July, in the heart of summer, provides Hwaseong with the warmest sea temperatures, hitting an average high of 22.3°C (72.1°F). Though daylight hours slightly decrease to 14.4, the city continues to enjoy long summer days. The warm and welcoming weather is perfect for swimming and other water-related activities. Weather in July »

In August, Hwaseong experiences the highest average sea temperature, rising to a peak of 23.4°C (74.1°F). The daylight hours see a further reduction, moving down to 13.6 hours. The shift from the peak summer heat of July to slightly cooler temperatures manifests a soothing atmosphere. Weather in August »

With the arrival of September, Hwaseong bids farewell to the intense summer heat. The sea temperature averages at 21.9°C (71.4°F), signaling the onset of autumn. The daylight duration decreases further, as the days get shorter, coming down to 12.4 hours. Weather in September »

October observes a significant drop in the sea temperature, reaching an average of 18.5°C (65.3°F) in Hwaseong. With daylight hours shortened to 11.2, the city witnesses a slower pace of life. The cooler weather marks the firm establishment of fall as leaves transform into a palette of colors. Weather in October »

November brings along a rapid decline in sea temperature, averaging to 13.8°C (56.8°F), indicating the imminent arrival of winter in Hwaseong. Daylight hours fall to 10.2, paving the way for longer nights. As the cold gradually seeps in, the golden hues of fall give way to the stark beauty of winter landscapes. Weather in November »

December welcomes winter's full bloom, with the sea temperature plummeting to 8.8°C (47.8°F) in Hwaseong. Daylight hours dip further to 9.6, marking the shortest day of the year associated with the winter solstice. The city turns into a winter wonderland, decorated in a blanket of snow. Weather in December »