Climate averages 1991–2020

Ulan-Ude weather
in May.

A mild, fairly dry month: the 4th warmest and the 8th driest of the year.

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

Average high 17.1°C Daytime mean, May
Average low 3.1°C Night-time mean, May
Rainfall 31 mm 7 days with ≥1 mm
Daylight 16 h Sunrise to sunset, per day
Every month in Ulan-Ude · average highYear overview

May is a mild month in Ulan-Ude: daytime highs average 17.1°C and nights cool to about 3.1°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 31 mm of rain on roughly 7 days, which makes May a fairly dry month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 37 min on an average May day.

The nearest other city in this atlas is Irkutsk (232 km away). In May its highs average 16.8°C, about as warm as Ulan-Ude, with 38 mm of rain.

Among the 236 cities listed in Russia, Ulan-Ude ranks joint 142nd of 236 for the warmest May highs and joint 5th of 236 for the driest May (rainfall, lowest first). The mean May high of those 236 cities is 17.0°C; Ulan-Ude is level with that mean.

From May to June, average highs rise by 6.8°C to 23.9°C, and monthly rainfall rises from 31 mm to 44 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. -30-25-20-15-10-5051015202530 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

Ulan-Ude climate table

1991–2020
Monthly climate averages for Ulan-Ude, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -15.9°C-27.2°C-27.2°C2.71.08.48 h
February -9.3°C-23.8°C-23.8°C2.91.19.910 h
March 0.1°C-13.2°C-13.2°C4.91.711.812 h
April 9.4°C-2.6°C-2.6°C153.713.814 h
May, selected 17.1°C3.1°C3.1°C316.715.616 h
June 23.9°C10.8°C10.8°C447.716.617 h
July 25.9°C14.4°C14.4°C539.616.216 h
August 23.1°C12.3°C12.3°C689.914.615 h
September 15.6°C5.2°C5.2°C448.512.713 h
October 6.3°C-2.6°C-2.6°C143.910.711 h
November -4.4°C-12.3°C-12.3°C9.33.28.99 h
December -13.7°C-22.6°C-22.6°C6.62.47.98 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

May in nearby cities

Distance from Ulan-Ude

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 Ulan-Ude) is explained once on the Ulan-Ude year overview and on the Sources, method and limits page.