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Weather Comparison

Seoul vs Jeju

Side-by-side weather comparison for March

Seoul: 10°CJeju: 11°C455 km apart

March Weather: Seoul vs Jeju

MetricSeoulJejuBetter
Average HighHigher is warmer10°C (50°F)11°C (52°F)Jeju
Average LowHigher is milder0°C (32°F)7°C (45°F)Jeju
Rain DaysFewer is drier6 days10 daysSeoul
PrecipitationLess is drier37 mm99 mmSeoul
Sunshine HoursMore is sunnier9h/day8h/daySeoul
HumidityLower is more comfortable65%70%Seoul
UV IndexLower is safer66Tie
Wind SpeedCalmer is better17 km/h21 km/hSeoul

Which City is Better in March?

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Seoul edges ahead as the better destination in March. Seoul offers 9 hours of daily sunshine with only 6 rain days, while Jeju sees 8 sunshine hours and 10 rain days.

Seoul is on the cooler side at 10°C, requiring warmer clothing. Jeju is cooler at 11°C.

For travelers who prioritize dry weather, Seoul is the stronger choice in March. Seoul receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Temperature Comparison in March

Seoul reaches an average high of 10°C (50°F) and drops to 0°C (32°F) at night during March. The daily temperature range is 10°C, meaning moderate variation throughout the day.

Jeju averages 11°C (52°F) for the high and 7°C (45°F) for the low, with a daily range of 4°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in March.

Rainfall Comparison in March

Seoul receives approximately 37 mm of rainfall across 6 rain days during March. Rain is occasional, so a light rain jacket should suffice.

Jeju sees 99 mm over 10 rain days. That makes Seoul the drier option by 4 rain days and 62 mm of total precipitation.

Humidity also differs: Seoul averages 65% while Jeju sits at 70%. Jeju will feel muggier, especially at higher temperatures.

What to Pack: Seoul vs Jeju

Packing for Seoul in March

Highs of 10°C, lows of 0°C, 6 rain days

  • warm layers
  • a mid-weight jacket
  • long trousers
  • a packable rain jacket
  • an umbrella
  • a warm scarf

Packing for Jeju in March

Highs of 11°C, lows of 7°C, 10 rain days

  • warm layers
  • a mid-weight jacket
  • long trousers
  • waterproof jacket
  • compact umbrella
  • waterproof shoes

Pack for both: warm layers, a mid-weight jacket, long trousers. These items are useful in either destination during March.

Year-Round Comparison: Seoul vs Jeju

The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.March is highlighted for quick reference.

MonthSeoulJeju
HighRainHighRain
Jan1°C4d7°C9d
Feb4°C4d8°C8d
Mar10°C6d11°C10d
Apr17°C7d16°C9d
May22°C8d20°C10d
Jun26°C9d23°C13d
Jul28°C17d27°C16d
Aug29°C16d28°C17d
Sep25°C8d25°C13d
Oct19°C5d20°C7d
Nov11°C7d15°C8d
Dec3°C5d10°C8d
10°

Seoul Weather in March

Full forecast, packing tips, and activities

11°

Jeju Weather in March

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Seoul warmer than Jeju in March?
No. In March, Jeju is warmer with an average high of 11°C (52°F) compared to Seoul at 10°C (50°F), a difference of 1°C.
Which city gets more rain in March, Seoul or Jeju?
Jeju gets more rain in March with 10 rain days and 99 mm of precipitation. Seoul is the drier option with 6 rain days.
Is it better to visit Seoul or Jeju in March?
It depends on your preferences. Seoul averages 10°C and 9 hours of daily sunshine with 6 rain days. Jeju averages 11°C with 8 sunshine hours and 10 rain days. If you prefer cooler conditions, choose Jeju. For drier weather, Seoul is the better pick.
How far apart are Seoul and Jeju?
Seoul and Jeju are approximately 455 km (283 miles) apart. Seoul is located in South Korea (Asia) while Jeju is in South Korea (Asia).
What is the best month to visit Seoul and Jeju?
For Seoul, May tends to be the best month with 10 hours of daily sunshine and a high of 22°C. For Jeju, August is typically ideal with 10 sunshine hours and 28°C highs.

Compare Seoul and Jeju in Other Months

Climate data sourced from the Open-Meteo Historical Weather API, using ERA5 reanalysis data covering 30-year normals from 1991 to 2020. All temperatures shown in Celsius with Fahrenheit equivalents. Rain days count days with 1 mm or more of precipitation. Sunshine hours represent average daily values. This comparison is generated from long-term climate averages and individual trips may vary.

Seoul coordinates: 37.57°N, 126.98°E | Jeju coordinates: 33.49°N, 126.50°E