Climate averages 1991–2020

Yaroslavl weather
in September.

A cool, moderately wet month: the 5th warmest and the joint 8th driest of the year.

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

Average high 14.6°C Daytime mean, September
Average low 8.1°C Night-time mean, September
Rainfall 60 mm 11 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Yaroslavl · average highYear overview

September is a cool month in Yaroslavl: daytime highs average 14.6°C and nights cool to about 8.1°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 60 mm of rain on roughly 11 days, which makes September a moderately wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 52 min on an average September day.

The nearest other city in this atlas is Kostroma (64 km away). In September its highs average 14.4°C, about as warm as Yaroslavl, with 65 mm of rain.

Among the 236 cities listed in Russia, Yaroslavl ranks joint 173rd of 236 for the warmest September highs and joint 178th of 236 for the driest September (rainfall, lowest first). The mean September high of those 236 cities is 16.4°C; Yaroslavl is 1.7°C cooler than that mean.

From September to October, average highs fall by 7.6°C to 7.0°C, and monthly rainfall stays at 60 mm.

The annual picture

September 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. -15-10-50510152025 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly precipitation

Average total · mm
Average monthly precipitation 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

Yaroslavl climate table

1991–2020
Monthly climate averages for Yaroslavl, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -6.1°C-11.1°C-11.1°C4010.77.37 h
February -5.6°C-11.2°C-11.2°C328.59.49 h
March 0.0°C-6.9°C-6.9°C348.811.812 h
April 8.7°C-0.3°C-0.3°C399.214.314 h
May 16.4°C7.0°C7.0°C5711.216.617 h
June 20.3°C11.9°C11.9°C7812.117.918 h
July 22.7°C14.7°C14.7°C8113.117.417 h
August 20.5°C12.9°C12.9°C7212.015.315 h
September, selected 14.6°C8.1°C8.1°C6010.612.913 h
October 7.0°C2.3°C2.3°C6011.610.410 h
November -0.3°C-3.9°C-3.9°C4810.58.18 h
December -4.2°C-8.4°C-8.4°C4010.76.77 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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

September in nearby cities

Distance from Yaroslavl

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