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Gaziantep weather by month: averages, rainfall & climate trends

Seasons run to extremes in Gaziantep: monthly means span 25.1°C between the coldest month and the warmest. Rainfall is on the low side overall. Gaziantep weather by month: average temperatures, rainfall, records and how the climate has changed since 1940.

Today vs average

−2.4°Chigh below average

21° / 13°Today
23° / 11°Average
see today in detail →

How it's changed

+2.6°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–4922frost days a year now (2016–2025) · 59 in the 1940sfrost days a year · 59 in the 1940s124days above 30°C a year now (2016–2025) · 98 in the 1940sdays above 30°C · 98 in the 1940s+2.6°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 85 mmhigh 7°low 0°February, rain 68 mmhigh 9°low 1°March, rain 66 mmhigh 14°low 4°April, rain 48 mmhigh 19°low 8°May, rain 30 mmhigh 26°low 12°June, rain 8 mmhigh 32°low 17°July, rain 2 mmhigh 35°low 21°August, rain 1 mmhigh 35°low 21°September, rain 4 mmhigh 31°low 17°October, rain 28 mmhigh 24°low 12°November, rain 51 mmhigh 16°low 6°December, rain 79 mmhigh 9°low 2°wettest month January, 85 mm · 470 mm a yearsee month by month →

Right now

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

Right now

12.8°

12°feels like
73%humidity
8°dew point
5 km/hfrom NW
UV index0.0
sunrise06:41sunset17:50day length11h 09m
TodayPartly cloudy21°13°
MonPartly cloudy20°10°
TuePartly cloudy21°10°
WedPartly cloudy21°12°
ThuPartly cloudy22°11°
FriMostly clear22°12°
SatPartly cloudy22°14°

On this date: October 18

Today (forecast)
21° / 13°
Average for October 18
23° / 11°

High below average · −2.4°C

  • Record high: 30.9° · 2009
  • Record low: 4.0° · 1977
  • One year ago: 27° / 11°

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 Gaziantep is sampled from the ECMWF ERA5 reanalysis at 37.06°N, 37.38°E, with daily records since 1940.

Coordinates
37.06°N, 37.38°E
Time zone
Europe/Istanbul
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

11 of the last 31 days were warmer than the historical average for that date. Average difference: −0.6°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 35.5°C by mid-afternoon, with nights around 20.6°C. In a typical recent year, around 125 days reach 30°C or more. At the other extreme, January brings afternoon highs of about 7.1°C and typical overnight lows of −0.4°C.

The yearly total for Gaziantep comes to about 470 mm; monthly amounts range from 1 mm in August up to 85 mm in January.

Over the full record (since 1940), the annual mean temperature in Gaziantep has risen by 2.6°C between its first decade and its last. Where the first decade averaged 60 frost days a year, the recent one saw about 20.

Climate graph (climograph)

July is the warmest month, January the coolest: a yearly swing of 25°C. Wettest month: January (~85 mm). Whole year averages ~470 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 57 rainy days a year: most in January (~10), fewest in August (almost none).

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.

Gaziantep 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
January7.1°−0.4°85 mm109.7 h16.5° (2014)−17.2° (1950)
February9.2°0.6°68 mm910.6 h23.4° (2016)−19.2° (1967)
March13.6°3.6°66 mm911.7 h28.2° (2025)−8.2° (1985)
April19.5°7.9°48 mm613.0 h35.6° (2008)−4.3° (1956)
May25.6°12.4°30 mm414.0 h37.9° (1990)2.8° (1948)
June31.5°17.3°8 mm114.5 h40.6° (2024)8.5° (1967)
July35.5°20.6°2 mm014.3 h43.1° (2000)14.1° (1969)
August35.5°20.6°1 mm013.4 h43.2° (2023)13.6° (1987)
September31.2°16.8°4 mm012.2 h40.6° (2020)5.9° (1970)
October24.1°11.6°28 mm311.0 h34.7° (1943)−0.6° (1971)
November15.7°5.8°51 mm610.0 h26.7° (1962)−6.0° (2001)
December9.3°1.6°79 mm99.5 h23.0° (2010)−18.0° (1948)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +2.6°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: +0.29°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

Mar–May is warming fastest: +0.36°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: 98.1 early in the record → 123.5 recently. Frost days: 59 → 22.

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 2023, all-time low in 1967: 43.2°C / −19.2°C.

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

Annual rainfall

~470 mm/year on average. Last decade: −5% vs that average. Long-term trend: −1 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 Gaziantep

Which is the warmest month in Gaziantep?
On long-term average, the warmest month in Gaziantep is July (mean daily temperature of about 28.1°C) and the coolest is January (about 3.1°C).
How does today's temperature in Gaziantep compare to the historical average?
On October 18, 2026, Gaziantep is forecast to reach a high of 21.0°C and a low of 13.2°C. The long-term average for this date (the full record since 1940) is a high of 23.4°C and a low of 11.5°C, so today's high is 2.4°C cooler than that average.
How much has Gaziantep warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Gaziantep is about 2.6°C warmer.
How much does it rain in Gaziantep?
Gaziantep receives about 470 mm of precipitation per year on long-term average, with January typically the wettest month.
What is the average temperature in Gaziantep?
Over the full record (since 1940), the annual mean temperature in Gaziantep is about 15.6°C. The warmest month is July and the coolest is January.
What are the average temperatures in Gaziantep by month?
Average daily highs and lows for each month in Gaziantep (°C, full record since 1940): January 7°/0°, February 9°/1°, March 14°/4°, April 19°/8°, May 26°/12°, June 32°/17°, July 35°/21°, August 35°/21°, September 31°/17°, October 24°/12°, November 16°/6°, December 9°/2°.
What is the weather like in Gaziantep in summer?
June to August is summer in Gaziantep, and it is dry and hot. Daytime highs sit at 32–35°C and nights at 17–21°C; July is the warmest month. Hardly any rain falls.
What is the weather like in Gaziantep in winter?
In winter, December through February, Gaziantep is on the cool side. Afternoons run 7–9°C and nights 0–2°C; January is the coldest month. Rain is steady at around 77 mm a month, spread over roughly 9 days. No season is wetter.
What is the weather like in Gaziantep in spring?
March to May is spring in Gaziantep, and it is mild. March starts at 14°C by day and 4°C at night; by May it is 26°C and 12°C. Rain eases through the season: 9 rainy days and 66 mm in March, 4 days and 30 mm in May.
What is the weather like in Gaziantep in autumn?
Autumn in Gaziantep (September to November) is pleasantly warm. It cools from 31°C by day and 17°C at night in September to 16°C and 6°C in November. Rain picks up through the season, 4 mm in September to 51 mm in November.
How many days a year does it rain in Gaziantep?
On long-term average, Gaziantep has about 57 days a year with at least 2 mm of rain or snow. The annual total is roughly 470 mm.

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