Climate averages 1991–2020

Başakşehir weather
in May.

A mild, fairly dry month: the 5th warmest and the 4th driest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 19.9°C Daytime mean, May
Average low 12.9°C Night-time mean, May
Rainfall 29 mm 6 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Başakşehir · average highYear overview

May is a mild month in Başakşehir: daytime highs average 19.9°C and nights cool to about 12.9°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 29 mm of rain on roughly 6 days, which makes May a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 28 min on an average May day.

The nearest other city in this atlas is Sultangazi (6 km away). In May its highs average 20.1°C, about as warm as Başakşehir, with 29 mm of rain.

Among the 138 cities listed in Turkey, Başakşehir ranks 109th of 138 for the warmest May highs and joint 7th of 138 for the driest May (rainfall, lowest first). The mean May high of those 138 cities is 22.4°C; Başakşehir is 2.6°C cooler than that mean.

From May to June, average highs rise by 4.9°C to 24.8°C, and monthly rainfall falls from 29 mm to 24 mm.

The annual picture

May in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Başakşehir climate table

1991–2020
Monthly climate averages for Başakşehir, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 7.6°C3.3°C3.3°C7111.19.610 h
February 8.3°C3.3°C3.3°C6110.310.611 h
March 10.6°C4.7°C4.7°C639.511.912 h
April 14.8°C8.0°C8.0°C397.013.313 h
May, selected 19.9°C12.9°C12.9°C295.814.514 h
June 24.8°C17.6°C17.6°C244.515.115 h
July 27.4°C20.3°C20.3°C162.614.815 h
August 27.6°C21.1°C21.1°C132.413.814 h
September 23.7°C17.6°C17.6°C375.412.513 h
October 18.7°C13.6°C13.6°C657.411.111 h
November 13.7°C9.2°C9.2°C618.49.910 h
December 9.5°C5.5°C5.5°C8411.89.39 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

May in nearby cities

Distance from Başakşehir

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Başakşehir) is explained once on the Başakşehir year overview and on the Sources, method and limits page.

Esenyurt, Küçükçekmece and Sultangazi lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.