Best time to visit Busan
Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
Compare with another destination
Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Tours in Busan
30 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Busan).
- 1
Busan Highlights: Small Group, Hotel Pick-up & Sky Capsule - 2
Busan Top Coastal Highlights with Gamcheon Village & Sky Capsule - 3
Gyeongju UNESCO World Heritage Guided Day Tour from Busan - 4
Best of Busan Day Tour: Coast, Culture and Local Markets - 5
Busan Tour: Haeundae Blueline Park, Yonggungsa, Gamcheon & more - 6
A Comprehensive Small-Group Busan Tour with Hotel Pickup - 7
Busan 9 Highlights Small Group City Tour - 8
Max Out Busan: Highlight Top Attractions One Day Tour - 9
Sunset Haeundae Sky Capsule and Busan Night view Tour from Busan - 10
Gyeongju Historic Areas Tour with Sky Capsule from Busan - 11
Gyeongju and Seokguram Grotto Day Tour From Busan - 12
Gyeongju: Small Group Tour with Busan & Gyeongju Pick-up - 13
Busan Cruise Shore Excursion with Guaranteed On-Time Return - 14
Geoje Oedo Botania Island from Busan - 15
Busan Sunset Tour with Sky Capsule, Old Town, and Local Snacks - 16
Busan Private Tour with Licensed Local guide - 17
Private Busan Tour - Explore Landmarks with a Licensed Guide - 18
Gyeongju UNESCO Private Tour with Busan or Gyeongju Pick-up - 19
Busan Hidden Gems Private Tour with a Licensed Guide - 20
Busan city tour from Seoul by KTX bullet train - 21
Full Day Private Busan Highlight Tour with Licensed Guide - 22
Busan Private Tour with an official tour guide - 23
[On Time Return] Busan Private Tour for Cruise passengers - 24
Highlights of Busan Private Tour by Licensed tour guide - 25
Authentic Busan Full-Day City Highlights Tour - 26
Busan Tour: Gamcheon Village & Haedong Yonggungsa Temple + Lunch - 27
Busan Night Tour with Cruise & Fireworks Show - 28
Old Korea Thousand History Tour of Gyeongju from Busan - 29
Guaranteed Return Busan Shore Excursion for Cruise Guests - 30
Busan Cruise Port – Premium Small Group Tour (Max 6 Guests)
Last refreshed 2026-10-18.
Similar climatesGyeongju95% · Daegu95% · Seoul93%
Other destinations with the most-alike year-round climate to Busan (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Busan's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | -3–7 | 2 | 5 | 56 | 11.2 | 49% | 19 | 174 | 2 | Quiet | 6 |
| Feb | 0–9 | 5 | 7 | 75 | 10.7 | 50% | 19 | 170 | 3 | Quiet | 6 |
| Mar | 4–14 | 11 | 8 | 91 | 11.4 | 53% | 19 | 194 | 4 | Quiet | 7 |
| Apr | 8–18 | 16 | 7 | 82 | 11.7 | 53% | 19 | 199 | 5 | Quiet | 8 |
| May | 13–22 | 21 | 9 | 103 | 11.4 | 57% | 19 | 219 | 6 | Quiet | 9 |
| Jun | 18–26 | 27 | 12 | 145 | 12.1 | 66% | 17 | 195 | 6 | Quiet | 8 |
| Jul | 23–28 | 32 | 20 | 259 | 12.9 | 78% | 17 | 180 | 7 | Moderate | 3 |
| Aug | 24–30 | 34 | 20 | 249 | 12.4 | 73% | 18 | 223 | 7 | Busy | 2 |
| Sep | 20–26 | 27 | 13 | 163 | 12.5 | 70% | 19 | 181 | 5 | Busy | 7 |
| Oct | 12–21 | 20 | 6 | 66 | 11.0 | 57% | 17 | 200 | 4 | Peak | 9 |
| Nov | 5–16 | 13 | 4 | 37 | 9.3 | 53% | 17 | 188 | 3 | Moderate | 8 |
| Dec | -2–7 | 3 | 2 | 25 | 12.5 | 48% | 18 | 189 | 2 | Quiet | 6 |
UV Index in Busan by Month
UV index in Busan peaks at 7 (high) in July, dropping to 2 (low) in December. May, June, July, August have high UV — SPF 30+ and sunglasses recommended.
Best months in detail
October
9/1012–21°C (feels 20°C) · 6 rain days (66h) · 200 sun hours · 57% humidity · Peak crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
May
9/1013–22°C (feels 21°C) · 9 rain days (103h) · 219 sun hours · 57% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
April
8/108–18°C (feels 16°C) · 7 rain days (82h) · 199 sun hours · 53% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 8 (high)
Every month
Show the other 9 months in detail
January
6/10-3–7°C (feels 2°C) · 5 rain days (56h) · 174 sun hours · 49% humidity · Quiet crowd · UV 2 (low)
February
6/100–9°C (feels 5°C) · 7 rain days (75h) · 170 sun hours · 50% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)
March
7/104–14°C (feels 11°C) · 8 rain days (91h) · 194 sun hours · 53% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
June
8/1018–26°C (feels 27°C) · 12 rain days (145h) · 195 sun hours · 66% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 9 (very high)
July
3/1023–28°C (feels 32°C) · 20 rain days (259h) · 180 sun hours · 78% humidity · Moderate crowd · UV 7 (high) · sunniest 1 in 10 days reach 10 (very high)
August
2/1024–30°C (feels 34°C) · 20 rain days (249h) · 223 sun hours · 73% humidity · Busy crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)
September
7/1020–26°C (feels 27°C) · 13 rain days (163h) · 181 sun hours · 70% humidity · Busy crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 8 (high)
November
8/105–16°C (feels 13°C) · 4 rain days (37h) · 188 sun hours · 53% humidity · Moderate crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)
December
6/10-2–7°C (feels 3°C) · 2 rain days (25h) · 189 sun hours · 48% humidity · Quiet crowd · UV 2 (low)
Frequently asked questions about visiting Busan
When is the best time to visit Busan?
October is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 12–21°C (6 rainy days). The top three months by score are October, May, April.
What is the worst time to visit Busan?
August is the lowest-scoring month (2/10, capped by extreme heat). Typical conditions: 24–30°C (20 rainy days).
Is Busan too hot in summer?
2 months (July, August) trip the heat deal-breaker in our scoring: apparent temperature crosses the comfort cap, so even with clear skies and low rain the score is held down. Plan around it if heat tolerance is low.
When are crowds lowest in Busan?
Search-interest seasonality (Google Trends 2021-2025) is lowest in February and peaks in October. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in Busan have good weather but fewer tourists?
May (climate 9/10, crowd index 3) and April (climate 8/10, crowd index 13) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Busan by month?
UV peaks at 7 (high) in July and is lowest in December at 2 (low). Monthly peak values: Jan 2, Feb 3, Mar 4, Apr 5, May 6, Jun 6, Jul 7, Aug 7, Sep 5, Oct 4, Nov 3, Dec 2.
What is the UV index in Busan in July?
July is the peak UV month in Busan, with a daily-peak UV index of 7 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.
How high can UV get in Busan on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. July is the worst case: typical days average UV 7 (high), but the top 10% of days reach UV 10 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: February, March, April, May, June, July, August, September, October, November. Plan sun protection for the worst case, not the average.
Is air quality in Busan bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 12 months: January, February, March, April, May, June, July, August, September, October, November, December. The worst month is March with a typical-day mean of 26 µg/m³ (unhealthy); on the worst 10% of days PM2.5 reaches 43 µg/m³ (hazardous) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.