Climate averages 1991–2020

Siirt weather
in August.

A very hot, very dry month: one of the warmest and the driest of the year.

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

Average high 34.7°C Daytime mean, August
Average low 19.3°C Night-time mean, August
Rainfall <1 mm Almost no rain
Daylight 14 h Sunrise to sunset, per day
Every month in Siirt · average highYear overview

August is a very hot month in Siirt: daytime highs average 34.7°C and nights cool to about 19.3°C. By daytime temperature it is one of the warmest months of the year.

Rain is very rare: less than 1 mm falls in a typical August (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 38 min on an average August day.

The nearest other city in this atlas is Tatvan (69 km away). In August its highs average 29.0°C, 5.8°C cooler than Siirt, with 4.5 mm of rain.

Among the 138 cities listed in Turkey, Siirt ranks joint 29th of 138 for the warmest August highs and joint 10th of 138 for the driest August (rainfall, lowest first). The mean August high of those 138 cities is 31.1°C; Siirt is 3.6°C warmer than that mean.

From August to September, average highs fall by 5.1°C to 29.6°C, and monthly rainfall rises from under 1 mm to 6.2 mm.

The annual picture

August 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. -10-50510152025303540 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 1500

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

Every month, side by side

Siirt climate table

1991–2020
Monthly climate averages for Siirt, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 5.4°C-3.9°C-3.9°C11212.39.910 h
February 7.1°C-3.1°C-3.1°C11811.810.811 h
March 11.9°C0.4°C0.4°C13413.811.912 h
April 17.3°C5.0°C5.0°C11413.113.213 h
May 23.0°C9.9°C9.9°C609.014.214 h
June 29.8°C15.3°C15.3°C5.91.714.715 h
July 34.7°C19.5°C19.5°C0.90.314.515 h
August, selected 34.7°C19.3°C19.3°C0.70.213.614 h
September 29.6°C14.7°C14.7°C6.21.112.512 h
October 22.2°C9.2°C9.2°C465.511.211 h
November 13.4°C2.3°C2.3°C747.510.210 h
December 7.4°C-2.1°C-2.1°C10810.59.610 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

August in nearby cities

Distance from Siirt

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 Siirt) is explained once on the Siirt year overview and on the Sources, method and limits page.