Climate averages 1991–2020

Kalmunai weather
in July.

A hot, fairly dry month: one of the warmest and one of the driest of the year.

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

Average high 33.2°C Daytime mean, July

Average low 26.4°C Night-time mean, July

Rainfall 31 mm 8 days with ≥1 mm

Daylight 13 h Sunrise to sunset, per day

July is a hot month in Kalmunai: daytime highs average 33.2°C and nights cool to about 26.4°C. By daytime temperature it is one of the warmest months of the year.

Expect about 31 mm of rain on roughly 8 days, which makes July a fairly dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 30 min on an average July day.

The nearest other city in this atlas is Batticaloa (37 km away). In July its highs average 34.5°C, 1.3°C warmer than Kalmunai, with 24 mm of rain.

Among the 12 cities listed in Sri Lanka, Kalmunai ranks 3rd of 12 for the warmest July highs and joint 3rd of 12 for the driest July (rainfall, lowest first). The mean July high of those 12 cities is 30.2°C; Kalmunai is 3.0°C warmer than that mean.

From July to August, average highs fall by 0.4°C to 32.8°C, and monthly rainfall rises from 31 mm to 42 mm.

The annual picture

July 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

Kalmunai climate table

1991–2020

Monthly climate averages for Kalmunai, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	27.0°C24.0°C	24.0°C	186	17.8	11.712 h
February	27.8°C24.1°C	24.1°C	96	13.2	11.912 h
March	29.5°C24.7°C	24.7°C	60	10.0	12.112 h
April	30.8°C25.8°C	25.8°C	70	13.3	12.312 h
May	32.3°C26.6°C	26.6°C	59	11.6	12.512 h
June	33.2°C26.6°C	26.6°C	31	6.7	12.513 h
July, selected	33.2°C26.4°C	26.4°C	31	7.5	12.513 h
August	32.8°C26.1°C	26.1°C	42	9.3	12.412 h
September	32.0°C25.9°C	25.9°C	67	13.6	12.212 h
October	30.2°C25.2°C	25.2°C	164	20.8	12.012 h
November	28.2°C24.5°C	24.5°C	280	24.8	11.812 h
December	27.2°C24.2°C	24.2°C	310	22.6	11.712 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

July in nearby cities

Distance from Kalmunai

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