Climate averages 1991–2020

Ambalantota weather
in March.

A hot, moderately wet month: the warmest and the 5th driest of the year.

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

Average high 31.7°C Daytime mean, March
Average low 24.4°C Night-time mean, March
Rainfall 58 mm 11 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Ambalantota · average highYear overview

March is a hot month in Ambalantota: daytime highs average 31.7°C and nights cool to about 24.4°C. By daytime temperature it is the warmest month of the year.

Expect about 58 mm of rain on roughly 11 days, which makes March a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average March day.

The nearest other city in this atlas is Matara (57 km away). In March its highs average 30.5°C, 1.2°C cooler than Ambalantota, with 99 mm of rain.

Among the 12 cities listed in Sri Lanka, Ambalantota ranks 2nd of 12 for the warmest March highs and 5th of 12 for the driest March (rainfall, lowest first). The mean March high of those 12 cities is 30.5°C; Ambalantota is 1.2°C warmer than that mean.

From March to April, average highs fall by 0.4°C to 31.3°C, and monthly rainfall rises from 58 mm to 110 mm.

The annual picture

March 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 2500

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

Every month, side by side

Ambalantota climate table

1991–2020
Monthly climate averages for Ambalantota, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.6°C23.2°C23.2°C568.611.812 h
February 30.7°C23.6°C23.6°C427.911.912 h
March, selected 31.7°C24.4°C24.4°C5811.212.112 h
April 31.3°C25.2°C25.2°C11018.712.312 h
May 31.0°C25.9°C25.9°C10118.712.412 h
June 31.0°C25.8°C25.8°C6014.912.512 h
July 31.2°C25.6°C25.6°C4513.212.412 h
August 31.2°C25.3°C25.3°C5213.012.312 h
September 30.9°C25.1°C25.1°C8716.612.212 h
October 30.3°C24.7°C24.7°C14120.312.012 h
November 29.2°C24.1°C24.1°C23123.011.812 h
December 28.9°C23.6°C23.6°C15316.911.812 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

March in nearby cities

Distance from Ambalantota

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