Seoul runs on four distinct seasons, something Malaysians rarely get to experience at home. That makes timing genuinely important here, the right month gets you cherry blossoms or golden foliage, while the wrong one gets you a monsoon downpour or sub-zero wind chill. Here's a full breakdown of what to expect season by season, so you can match your trip to the version of Seoul you actually want to see.

The best time to visit Seoul is during spring (March to May) or autumn (September to November), when temperatures stay mild, rainfall is low, and the city looks its most photogenic. Spring brings cherry blossoms; autumn brings fall foliage, both seasons draw bigger crowds and higher hotel prices as a result, so it's worth booking ahead if you're travelling during either window.

If your priority is budget over scenery, winter (December to February) is the better call, with hotel rates dropping well below peak-season prices. Summer (June to August) sits at the opposite end, hot, humid, and rainy, and is generally the season most guides recommend planning around rather than toward.

Spring in Seoul means daytime temperatures gradually climbing from around 5°C in March to the low 20s°C by May, with dry air and mostly clear skies throughout. Cherry blossoms typically start appearing in late March and peak in early April, with Yeouido and Nami Island among the most popular spots to see them in full bloom.

By May, the flowers are gone but the pleasant weather sticks around, and it's a noticeably quieter month than peak cherry blossom season. This shoulder period toward early summer is a solid pick if comfortable walking weather matters more than blossoms specifically.

Summer is Seoul's hot, humid stretch, with temperatures generally sitting between 25°C and 30°C and July often bringing the heaviest rain of the year. The monsoon season, known locally as jangma, typically runs through late June and July, meaning sudden downpours are common even on days that start out sunny.

This is also peak tourist season despite the discomfort, so hotel prices climb even as the weather works against you. Flight prices, on the other hand, tend to dip during summer, which is part of why some travellers still choose to brave the heat.

Autumn brings some of Seoul's most reliable weather, with temperatures cooling to a comfortable 10–20°C range and skies staying largely clear through October and November. Fall foliage is the main draw here, typically peaking in late October, with Bukhansan National Park and Namsan among the most recommended spots for it.

Crowds and hotel rates rise to match spring's popularity during this window, so early booking applies just as much here as it does for cherry blossom season. By November, temperatures start dropping further, giving a crisper, quieter version of the same scenery for anyone travelling toward the tail end of the season.

Winter in Seoul is genuinely cold, with January typically the coldest month, averaging between -6°C and 2°C and occasionally dropping as low as -15°C on the harshest days. Snow is common, and Seoul's palaces and hanok villages take on a different, quieter atmosphere once the crowds thin out for the season.

Hotel prices tend to fall 30–50% below peak-season rates during this period, making winter one of the better windows for budget-conscious travellers who don't mind the cold. If your trip overlaps with Seollal (Korean Lunar New Year, usually falling in January or February), expect some shops and restaurants to close briefly, along with a spike in domestic travel demand.

October is generally considered the single best month to visit Seoul, combining comfortable temperatures, minimal rainfall, and fall foliage near its peak. April runs a close second, offering similar comfort alongside cherry blossom season instead of autumn colours.

Both months also happen to be the busiest on the calendar, so travellers chasing quieter crowds might lean toward late May or mid-November instead, when the weather is still fairly close but demand has eased off.

July is generally the month to avoid if comfort and clear skies are a priority, given the combination of heavy monsoon rain, high humidity, and hot temperatures. January's extreme cold is a lesser but still real concern for travellers who aren't used to sub-zero conditions.

Neither month rules out a trip entirely, summer festivals and winter light displays still draw plenty of visitors, but both call for realistic expectations about the weather you'll be dealing with.

Direct flights from Kuala Lumpur to Seoul (Incheon) take around 6.5 hours, operated by Malaysia Airlines, AirAsia X, Batik Air, and Korean Air. Seoul sits one hour ahead of Malaysia, a small enough gap that jet lag generally isn't a concern on either end of the trip.

With close to 20 direct flights running weekly between the two cities, there's usually a departure time to fit most schedules, whether you're after an early morning arrival or a late-night flight out. Fares also tend to dip during the shoulder months just before and after peak cherry blossom and foliage season, worth keeping in mind if flexibility on dates is an option.

Once your travel dates are set, Traveloka, the #1 All-in-one Travel App in SEA*, makes booking the rest of your Seoul trip straightforward from a single app. Flights to Seoul and hotels around the city both come with Best Price Guarantee and 24/7 live agent support, backed by access to 2 million+ properties worldwide, plus flexible pay-later options and free cancellation on eligible bookings.

Rounding out the trip, the app also covers Seoul attractions and tours, and it's worth checking current Traveloka promos before you lock in your dates. T&Cs apply. *#1 in cumulative downloads (2014–2025) among Travel Booking services apps. Source: SensorTower.