Climate averages 1991–2020

Dehiwala-Mount Lavinia weather
in November.

A hot, very wet month: the 7th warmest and the wettest of the year.

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

Average high 28.7°C Daytime mean, November
Average low 23.7°C Night-time mean, November
Rainfall 330 mm 24 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Dehiwala-Mount Lavinia · average highYear overview

November is a hot month in Dehiwala-Mount Lavinia: daytime highs average 28.7°C and nights cool to about 23.7°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 330 mm of rain on roughly 24 days, which makes November a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 49 min on an average November day.

The nearest other city in this atlas is Colombo (11 km away). In November its highs average 29.0°C, about as warm as Dehiwala-Mount Lavinia, with 307 mm of rain.

Among the 12 cities listed in Sri Lanka, Dehiwala-Mount Lavinia ranks 4th of 12 for the warmest November highs and 12th of 12 for the driest November (rainfall, lowest first). The mean November high of those 12 cities is 28.2°C; Dehiwala-Mount Lavinia is 0.5°C warmer than that mean.

From November to December, average highs rise by 0.2°C to 29.0°C, and monthly rainfall falls from 330 mm to 174 mm.

The annual picture

November 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. 20253035 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 3500

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

Every month, side by side

Dehiwala-Mount Lavinia climate table

1991–2020
Monthly climate averages for Dehiwala-Mount Lavinia, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.9°C23.1°C23.1°C608.711.812 h
February 30.8°C23.7°C23.7°C588.611.912 h
March 31.0°C24.5°C24.5°C7514.912.112 h
April 30.4°C25.0°C25.0°C17424.112.312 h
May 29.2°C25.4°C25.4°C29329.112.412 h
June 28.6°C25.1°C25.1°C25626.612.513 h
July 28.2°C24.8°C24.8°C20525.412.512 h
August 28.1°C24.7°C24.7°C18324.412.312 h
September 28.2°C24.5°C24.5°C23224.312.212 h
October 28.5°C24.2°C24.2°C32826.112.012 h
November, selected 28.7°C23.7°C23.7°C33023.811.812 h
December 29.0°C23.3°C23.3°C17416.511.712 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

November in nearby cities

Distance from Dehiwala-Mount Lavinia

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 Dehiwala-Mount Lavinia) is explained once on the Dehiwala-Mount Lavinia year overview and on the Sources, method and limits page.