WeatherJourney.com

Anyang-si weather history

Live conditions, the day's high and low compared with the long-term normal, monthly climate averages, all-time records and the city's warming trend since 1940 — all on one page for Anyang-si, South Korea.

Today

29°/13°

Normal for this date 25° / 16°

Much warmer+4.2°C

How it’s changed

+2.3°Caverage temperature, 2016–2025 vs 1940–1949
103frost days a year now (2016–2025) · 125 in the 1940s
41days above 30°C a year now · 17 in the 1940s

Right now

What it's doing today vs the historical normal for this date.
Overcast

Right now

14.1°

15°feels like
96%humidity
14°dew point
2 km/hfrom S
sunrise05:11sunset19:50day length14h 38m
SatPartly cloudy29°13°
SunOvercast25°19°
MonOvercast25°16°
TueClear26°14°
WedPartly cloudy24°14°
ThuPartly cloudy25°16°
FriOvercast28°15°

On this date — June 5

Today (forecast)
29° / 13°
Normal for June 5
25° / 16°

Warmer than usual · 4.2°C above the normal high

  • Record high: 32.0° · 2016
  • Record low: 10.3° · 1962
  • One year ago: 26.8°

Every June 5 in history — coldest to hottest

Daily highsDaily lows

Dots show daily highs (top) and lows (bottom) for each June 5 on record (n = 86). Outlined dots are today's forecast.

Next 24 hours

NowClear15°
01Partly cloudy15°
02Overcast14°
03Overcast14°
04Fog14°
05Fog13°
06Fog13°
07Fog15°
08Overcast18°
09Mostly clear21°
10Clear24°
11Clear26°
12Partly cloudy27°
13Partly cloudy28°
14Mostly clear29°
15Overcast29°
16Partly cloudy28°
17Overcast27°

Last 30 days

18 of the last 24 days were warmer than the historical normal for that date. Average difference: +2.2°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above normal; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Normal = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

Climate

What a typical year looks like — built from the full record.

Climate overview

The warmest month of the year in Anyang-si is August, with a daily mean around 25.4°C and typical afternoon highs of 29.1°C. The coolest is January, when daily means drop to roughly -3.7°C and overnight lows hover around -8.4°C. Between the two extremes the climate moves through a fairly predictable seasonal cycle that you can see in the monthly chart below.

Total annual precipitation in Anyang-si averages about 1250 mm. The wettest month is usually July with around 319 mm of rain, while January is the driest at roughly 24 mm. The split between wet and dry seasons gives a quick sense of when umbrellas and waterproof shoes are most useful.

Over the full record (since 1940), the annual mean temperature in Anyang-si has shifted by +2.3°C between the first decade and the last. The hottest single day in the record reached 38.3°C in 2018; the coldest, -25.3°C in 2001.

Monthly temperature range

August is the warmest month, January the coolest — a yearly swing of 29°C.

Each bar is the average daily low → average daily high for that month. Color shifts cool→warm by month temperature. The dot is the monthly mean. Normal = each month's value averaged across every year of record (1940–2026).

Monthly rainfall

Wettest month: July (~319 mm). Whole year averages ~1250 mm of rain.

Average total millimetres of rainfall in each calendar month, across the full record.

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre — a measured proxy for how sunny the month is.

Monthly reference table

Numerical reference: average highs/lows, mean rainfall, and absolute records for each month of the year. Normal = each month's value averaged across every year of record (1940–2026).

MonthAvg highAvg lowRainRecord highRecord low
January1.0°-8.4°24 mm13.6° (2002)-25.3° (2001)
February3.9°-5.5°27 mm18.7° (2004)-23.2° (1969)
March9.9°-0.1°46 mm24.6° (2025)-14.5° (1969)
April17.0°6.3°80 mm29.7° (2005)-3.6° (1941)
May22.4°12.1°94 mm32.0° (2014)3.9° (1961)
June26.2°17.6°144 mm36.2° (1958)9.5° (1981)
July28.3°22.0°319 mm36.7° (2015)13.0° (1954)
August29.1°22.2°244 mm38.3° (2018)12.8° (1972)
September25.1°16.3°143 mm34.1° (2024)5.3° (1957)
October19.1°8.7°52 mm28.8° (2006)-3.5° (1956)
November11.2°1.7°48 mm25.2° (2023)-12.5° (1996)
December3.5°-5.2°29 mm17.4° (2023)-20.5° (1960)

How it has changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +2.3°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Normal = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Hot days vs frost days

Days ≥ 30°C per year: 17.1 early in the record → 41.2 recently. Frost days: 125 → 103.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Normal = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

All-time high in 2018, all-time low in 2001: 38.3°C / -25.3°C.

One point per year — the single hottest and coldest day recorded that year.

Annual rainfall

~1250 mm/year on average. Last decade ran −3% vs that average.

One bar per year of total rainfall. Dashed line is the long-term average. Normal = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record — ~30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical normal for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Normal = the long-term average for that calendar date (1940–2026).

Anyang-si — Frequently asked questions

Which is the warmest month in Anyang-si?
On long-term average, the warmest month in Anyang-si is August (mean about 25.4°C) and the coolest is January (about -3.7°C).
How does today's temperature in Anyang-si compare to the historical average?
On 2026-06-05, Anyang-si is forecast to reach a high of 29.1°C and a low of 13.2°C. The long-term normal for this date (1991–2020 average) is a high of 24.9°C and a low of 15.5°C — today's high is 4.2°C warmer than the historical normal.
How much has Anyang-si warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Anyang-si is about 2.3°C warmer.
How much does it rain in Anyang-si?
Anyang-si receives about 1250 mm of precipitation per year on long-term average, with July typically the wettest month.