Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Hwaseong-si is from May, June, October. — consistent weather climate
🌦Humid
| Score | 25 | 26 | 41 | 72 | 81 | 79 | 44 | 45 | 74 | 85 | 40 | 25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Polar | Cold | Cold | Mild | Cool & rainy | Humid | Rainy | Hot & rainy | Humid | Mild | Cold | Cold |
| Temperature | -5–2°C | -3–5°C | 1–11°C | 7–17°C | 12–22°C | 17–26°C | 22–28°C | 23–29°C | 18–25°C | 10–19°C | 3–12°C | -4–4°C |
| Feels like | -10–-2°C | -8–0°C | -3–8°C | 4–15°C | 11–21°C | 18–28°C | 25–33°C | 26–34°C | 19–27°C | 8–18°C | 0–9°C | -8–0°C |
| Precipitation | 19mm 4 days | 31mm 4 days | 36mm 4 days | 65mm 6 days | 105mm 7 days | 110mm 8 days | 290mm 19 days | 237mm 16 days | 137mm 9 days | 68mm 5 days | 67mm 7 days | 31mm 5 days |
| Sunshine | 7.6h ☀︎ 76% | 8.3h ☀︎ 77% | 9.2h ☀︎ 77% | 9.4h ☀︎ 71% | 10.0h ☀︎ 70% | 9.9h ☀︎ 68% | 7.4h ☀︎ 51% | 9.2h ☀︎ 68% | 8.5h ☀︎ 68% | 8.4h ☀︎ 74% | 7.2h ☀︎ 70% | 7.1h ☀︎ 74% |
| Wind | NW · 18 km/h | NW · 19 km/h | W · 18 km/h | W · 19 km/h | W · 18 km/h | W · 17 km/h | SW · 16 km/h | SW · 16 km/h | NE · 16 km/h | N · 16 km/h | N · 17 km/h | N · 18 km/h |
| Humidity (%) | 63% | 65% | 69% | 68% | 71% | 77% | 84% | 82% | 76% | 72% | 71% | 65% |
| Day length | 9.9h | 10.8h | 12.0h | 13.2h | 14.2h | 14.7h | 14.4h | 13.6h | 12.4h | 11.2h | 10.2h | 9.7h |
Hwaseong's calendar holds a sharp paradox: visitors flood in during December's freezing gloom, while October offers radiant, clear-sky coastal perfection with only half the crowd.
First-time travelers often confuse Hwaseong with the celebrated fortress that shares its name, which sits across the boundary in neighboring Suwon. What actually awaits in Hwaseong is something much more elemental: the widest expanse of fertile agricultural land in Gyeonggi Province, meeting the mudflats and shifting tides of the Yellow Sea. This is a vast, horizontal territory of rice fields, salt-scented fishing harbors, and sprawling commuter districts connected to the capital by rail. Understanding when to come depends entirely on whether you want to wrestle with biting coastal winds or stroll along quiet tidal plains beneath warm, unclouded skies.
October is the undisputed summit of the calendar in Hwaseong. The summer humidity has blown out to sea, the monsoon storms are a distant memory, and the air turns remarkably sharp and dry. Across the flat river plains that cover the interior, the province's largest farmland ripens into sweeping sheets of amber rice stubble and golden grasses. Daytime temperatures settle into that rare, effortless sweet spot where a light knit or windbreaker is all you need for an entire day outdoors.
Out on the coastline, the Yellow Sea retreats along dramatic mudflats under crystalline blue skies. Crossing the causeway to Jebudo during low tide feels otherworldly when the afternoon sun bounces off the wet silt and the breeze carries none of the stifling moisture of high summer. The light in October has a distinct amber quality, lasting well into the evening before the chill settles in.
Despite boasting the finest weather of the entire year, October sees only moderate foot traffic. Regional day-trippers disperse easily across the wide rural roads and coastal trails, leaving you with open vistas, quiet boardwalks, and an unhurried atmosphere that disappears completely by winter.
Spring arrives deliberately in Hwaseong. In April, the lingering bite of the Yellow Sea winds keeps mornings crisp, but the landscape rapidly sheds its winter brown. Paddies are flooded in preparation for planting, turning the flat inland horizon into vast mirrors that reflect pale spring skies. As Seoul Subway Line 1 carries commuters down toward Byeongjeom Station, the urban high-rises give way to freshly tilled earth and flowering orchards.
By May and June, conditions become thoroughly inviting. The afternoons warm into genuine comfort, outdoor life returns to waterfront promenades like Dongtan Lake Park, and coastal breezes keep the warming air fresh rather than oppressive. Rain begins to show up more regularly in May, arriving in brief, intense downpours rather than persistent all-day drizzles, clearing out just as fast to leave bright, washed air.
Early June offers a brief, glorious bridge before the true heat sets in. The coastal wetlands are lush with reeds, daytime warmth invites leisurely walks along the fishing piers, and evening temperatures remain gentle enough to linger outside long after sunset without needing extra layers.
Midsummer is an uncompromising season along the Yellow Sea. High humidity rolls inland, turning the agricultural basin into a warm, vaporous greenhouse. July brings the peak of the monsoon, dumping torrential sheets of water that saturate the low-lying fields and turn rural footpaths into slick clay. When the rain breaks, the sun beats down relentlessly, driving apparent temperatures into the mid-thirties and making sustained outdoor walking an exhausting endeavor before dusk.
August trades some of July's rainfall volume for intense, unrelenting mugginess. Coastal harbors are thick with haze, and the tidal flats radiate trapped heat during low water. Even with coastal winds, the air rarely cools down at night, pushing residents indoors toward air-conditioned complexes.
If you find yourself in the city during these weeks, adapt your clock to the rhythm of the tides and the sun. Save any walking for the earliest daylight hours or the blue hour after twilight, and plan to spend the sweltering middle of the day away from exposed coastal dikes and unshaded fields.
September provides immediate relief from the summer pressure cooker. While the tail end of typhoon season can still bring intermittent heavy rainfall, the ambient humidity drops noticeably within the first two weeks. The air softens, the coastal breeze regains its brisk edge, and outdoor exploration becomes comfortable once again as the farmlands turn from emerald to tawny gold.
November, on the other hand, is the month when winter slams the door shut. The transition from October's perfection is swift and unforgiving. The lush reed beds dry into brittle stalks, the rice harvest concludes, and dry continental air begins sweeping down across the plains from the north.
By mid-November, afternoon temperatures struggle to stay mild, and the wind off the sea carries a bitter, sharp chill that penetrates through autumn jackets. Foot traffic rises as regional visitors make late-year weekend trips, yet the outdoors demands heavy wool coats and thermal layers, warning that the harsh coastal freeze is imminent.
The final month of the year presents Hwaseong's strangest contradiction. December registers as the absolute busiest month on the city's calendar, drawing large numbers of travelers and commuters who fill the transport corridors and urban centers like Dongtan Lake Park for year-end gatherings. Yet climatologically, December ties for the most inhospitable weather of the year, marked by sub-zero wind chills, bare dormant landscapes, and biting marine gales.
January and February offer little warmth, though crowd numbers mercifully drop back to seasonal lows. As the Suin-Bundang Line cuts through the frozen countryside near Eocheon Station, you look out over frost-hardened furrows, icy drainage canals, and mudflats rimmed with brittle sea ice. The wind off the Yellow Sea is cutting, turning even brief walks along the shore into tests of endurance.
March begins the long thaw, bringing longer daylight hours and slightly calmer winds, but the ground remains mostly bare and the air stubbornly cold well into the month. Unless you specifically seek the stark, lonely beauty of frozen mudflats under pale winter light, this deep-cold stretch is the hardest time to appreciate what the city has to offer.