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Guilin weather by month: averages, rainfall & climate trends

Guilin has well-marked seasons, with 18.4°C between its warmest and coolest monthly means. Rainfall leans toward the stretch from March to July. Guilin weather by month: average temperatures, rainfall, records and how the climate has changed since 1940.

Today vs average

+5.7°Chigh well above average

31° / 22°Today
26° / 18°Average
see today in detail →

How it's changed

+1.1°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–490frost days a year now (2016–2025) · 1 in the 1940sfrost days a year · 1 in the 1940s122days above 30°C a year now (2016–2025) · 62 in the 1940sdays above 30°C · 62 in the 1940s+1.1°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 90 mmhigh 13°low 7°February, rain 125 mmhigh 15°low 8°March, rain 216 mmhigh 19°low 12°April, rain 351 mmhigh 24°low 17°May, rain 383 mmhigh 27°low 21°June, rain 367 mmhigh 30°low 24°July, rain 211 mmhigh 32°low 26°August, rain 179 mmhigh 32°low 25°September, rain 84 mmhigh 31°low 23°October, rain 83 mmhigh 26°low 18°November, rain 89 mmhigh 21°low 13°December, rain 68 mmhigh 16°low 8°wettest month May, 383 mm · 2,247 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Partly cloudy

Right now

22.8°

25°feels like
75%humidity
18°dew point
5 km/hfrom NE
UV index0.0
sunrise06:39sunset18:08day length11h 29m
MonPartly cloudy31°22°
TueMostly clear33°25°
WedPartly cloudy25°18°
ThuClear26°17°
FriMostly clear26°18°
SatClear28°18°
SunMostly clear29°18°

On this date: October 18

Today (forecast)
31° / 22°
Average for October 18
26° / 18°

High well above average · +5.7°C

  • Record high: 33.5° · 1961
  • Record low: 13.4° · 1987
  • One year ago: 28° / 21°

Every October 18 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 18 on record (n = 87). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Guilin is sampled from the ECMWF ERA5 reanalysis at 25.28°N, 110.30°E, with daily records since 1940.

Coordinates
25.28°N, 110.30°E
Time zone
Asia/Shanghai
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

24 of the last 31 days were warmer than the historical average for that date. Average difference: +2.7°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; 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. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The year peaks in July, at around 32.2°C by mid-afternoon, with nights around 25.5°C. Around 165 nights a year stay above 20°C. The coolest month is January, when afternoons reach about 13.3°C and overnight lows sit around 6.8°C.

In total, Guilin averages about 2,247 mm of precipitation a year; May is usually the wettest month (383 mm) and December the driest (68 mm). A typical year brings rain or snow on around 176 days.

The record here starts in 1940, and since then the annual mean in Guilin has climbed 1.1°C from the first ten years to the last ten. Days above 30°C have grown noticeably more frequent, from around 60 a year in the first decade to about 120 in the last.

Climate graph (climograph)

July is the warmest month, January the coolest: a yearly swing of 18°C. Wettest month: May (~383 mm). Whole year averages ~2,247 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Rainy days by month

About 176 rainy days a year: most in May (~22), fewest in October (~8).

Bars = average number of days with ≥ 2 mm per month. Hover for the monthly rainfall total.

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Guilin month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Record high/low are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainRainy daysDaylightRecord highRecord low
January13.3°6.8°90 mm1210.6 h27.1° (1969)−2.7° (1963)
February14.5°8.5°125 mm1411.1 h32.3° (1979)−2.2° (1957)
March18.6°12.4°216 mm1911.8 h34.1° (1988)1.6° (1951)
April23.5°17.3°351 mm2112.6 h34.1° (1991)6.1° (1996)
May27.5°21.3°383 mm2213.2 h37.4° (2023)12.0° (1966)
June30.1°24.2°367 mm2213.6 h38.0° (1981)15.9° (1987)
July32.2°25.5°211 mm1813.4 h38.8° (1985)20.0° (1989)
August32.2°25.2°179 mm1612.9 h39.8° (2013)19.3° (1966)
September30.7°23.0°84 mm912.1 h38.6° (2019)14.7° (1997)
October26.2°18.4°83 mm811.4 h37.6° (2022)6.9° (1942)
November20.8°13.1°89 mm810.7 h33.1° (1974)2.9° (1975)
December15.6°8.1°68 mm810.4 h27.7° (1968)−2.1° (1944)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.1°C.

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

Annual mean temperature

Long-term trend: +0.12°C per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Jun–Aug is warming fastest: +0.25°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 62.1 early in the record → 121.5 recently. Frost days: 1 → 0.

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. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

All-time high in 2013, all-time low in 1963: 39.8°C / −2.7°C.

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

Annual rainfall

~2,247 mm/year on average. Last decade: −7% vs that average. Long-term trend: −26 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = 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, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average 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). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Guilin

Which is the warmest month in Guilin?
On long-term average, the warmest month in Guilin is July (mean daily temperature of about 28.4°C) and the coolest is January (about 10.1°C).
How does today's temperature in Guilin compare to the historical average?
On October 18, 2026, Guilin is forecast to reach a high of 31.3°C and a low of 22.0°C. The long-term average for this date (the full record since 1940) is a high of 25.6°C and a low of 18.2°C, so today's high is 5.7°C warmer than that average.
How much has Guilin warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Guilin is about 1.1°C warmer.
How much does it rain in Guilin?
Guilin receives about 2,247 mm of precipitation per year on long-term average, with May typically the wettest month.
What is the average temperature in Guilin?
Over the full record (since 1940), the annual mean temperature in Guilin is about 20.2°C. The warmest month is July and the coolest is January.
What are the average temperatures in Guilin by month?
Average daily highs and lows for each month in Guilin (°C, full record since 1940): January 13°/7°, February 15°/8°, March 19°/12°, April 24°/17°, May 27°/21°, June 30°/24°, July 32°/26°, August 32°/25°, September 31°/23°, October 26°/18°, November 21°/13°, December 16°/8°.
What is the weather like in Guilin in summer?
June to August is summer in Guilin, and it is wet and hot. Daytime highs sit at 30–32°C and nights at 24–26°C; August is the warmest month. Rain falls off from 367 mm on 22 days in June to 179 mm on 16 days in August.
What is the weather like in Guilin in winter?
December to February is winter in Guilin, and it is cool. Afternoons run 13–16°C and nights 7–8°C; January is the coldest month. Rain picks up through the season: 8 rainy days and 68 mm in December, 14 days and 125 mm in February.
What is the weather like in Guilin in spring?
March to May is spring in Guilin, and it is wet and pleasantly warm. March starts at 19°C by day and 12°C at night; by May it is 27°C and 21°C. Rain rises from 216 mm on 19 days in March to 383 mm on 22 days in May. No season is wetter.
What is the weather like in Guilin in autumn?
In autumn, September through November, Guilin is pleasantly warm. It cools from 31°C by day and 23°C at night in September to 21°C and 13°C in November. Rain falls on about 8 days a month, adding up to around 86 mm.
How many days a year does it rain in Guilin?
On long-term average, Guilin has about 176 days a year with at least 2 mm of rain or snow. The annual total is roughly 2,247 mm.

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