Climate averages 1991–2020

Siirt weather
in January.

A cold, wet month: the coolest and the 9th driest of the year.

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

Average high 5.4°C Daytime mean, January
Average low -3.9°C Night-time mean, January
Rainfall 112 mm 12 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Siirt · average highYear overview

January is a cold month in Siirt: daytime highs average 5.4°C and nights cool to about -3.9°C. By daytime temperature it is the coolest month of the year.

Expect about 112 mm of rain on roughly 12 days, which makes January a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 51 min on an average January day.

The nearest other city in this atlas is Tatvan (69 km away). In January its highs average 0.2°C, 5.2°C cooler than Siirt, with 96 mm of precipitation.

Among the 138 cities listed in Turkey, Siirt ranks joint 101st of 138 for the warmest January highs and joint 116th of 138 for the driest January (rainfall, lowest first). The mean January high of those 138 cities is 7.4°C; Siirt is 2.1°C cooler than that mean.

From January to February, average highs rise by 1.7°C to 7.1°C, and monthly rainfall rises from 112 mm to 118 mm.

The annual picture

January 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, selected 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 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

January 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.