Climate averages 1991–2020

Galle weather
in April.

A hot, wet month: the 2nd warmest and the 4th driest of the year.

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

Average high 29.2°C Daytime mean, April

Average low 25.4°C Night-time mean, April

Rainfall 147 mm 23 days with ≥1 mm

Daylight 12 h Sunrise to sunset, per day

April is a hot month in Galle: daytime highs average 29.2°C and nights cool to about 25.4°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 147 mm of rain on roughly 23 days, which makes April a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 15 min on an average April day.

The nearest other city in this atlas is Matara (38 km away). In April its highs average 29.9°C, 0.6°C warmer than Galle, with 182 mm of rain.

Among the 12 cities listed in Sri Lanka, Galle ranks 11th of 12 for the warmest April highs and 7th of 12 for the driest April (rainfall, lowest first). The mean April high of those 12 cities is 30.7°C; Galle is 1.5°C cooler than that mean.

From April to May, average highs fall by 0.7°C to 28.6°C, and monthly rainfall rises from 147 mm to 279 mm.

The annual picture

April in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

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

Every month, side by side

Galle climate table

1991–2020

Monthly climate averages for Galle, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	28.3°C23.6°C	23.6°C	64	12.2	11.812 h
February	29.0°C24.0°C	24.0°C	51	10.3	11.912 h
March	29.6°C24.7°C	24.7°C	65	13.9	12.112 h
April, selected	29.2°C25.4°C	25.4°C	147	22.6	12.312 h
May	28.6°C25.5°C	25.5°C	279	28.6	12.412 h
June	28.1°C25.2°C	25.2°C	244	27.6	12.512 h
July	27.8°C24.9°C	24.9°C	214	27.5	12.412 h
August	27.7°C24.8°C	24.8°C	207	27.3	12.312 h
September	27.7°C24.7°C	24.7°C	240	26.5	12.212 h
October	27.8°C24.5°C	24.5°C	263	26.5	12.012 h
November	28.0°C24.2°C	24.2°C	250	23.5	11.912 h
December	28.0°C23.9°C	23.9°C	148	18.5	11.812 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

April in nearby cities

Distance from Galle

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