Climate and Average Weather Year Round in Sri Lanka

We show the climate in Sri Lanka by comparing the average weather in 3 representative places: Colombo, Anuradhapura, and Batticaloa.

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Sri Lanka
Sri Lanka
Sri Lanka

Average High and Low Temperature in Sri Lanka

Average High and Low Temperature in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°F105°F105°F807490867972948476938386103948390887810689NowNowBatticaloaBatticaloaAnuradhapuraAnuradhapura
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
Colombo 88°F89°F90°F90°F89°F87°F86°F86°F86°F87°F87°F87°F
Anuradhapura 86°F89°F93°F93°F91°F90°F90°F91°F91°F89°F86°F85°F
Batticaloa 83°F84°F87°F89°F91°F93°F92°F91°F90°F87°F85°F83°F
Colombo 74°F75°F77°F78°F80°F80°F80°F79°F79°F77°F76°F75°F
Anuradhapura 72°F73°F75°F77°F78°F78°F78°F77°F77°F76°F74°F73°F
Batticaloa 76°F77°F78°F80°F81°F81°F80°F80°F79°F78°F77°F77°F


Average Hourly Temperature in ColomboJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowwarmwarmhot


Average Hourly Temperature in AnuradhapuraJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcomfortablewarmhotcomfortable


Average Hourly Temperature in BatticaloaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowwarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in Sri Lanka

Chance of Clearer Skies in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%441249NowNowBatticaloaBatticaloaColomboColomboAnuradhapuraAnuradhapura
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Colombo 39%43%41%25%16%13%13%14%19%20%23%31%
Anuradhapura 43%47%45%29%17%12%12%13%18%22%26%34%
Batticaloa 37%42%42%28%16%13%12%13%18%21%23%31%

Daily Chance of Precipitation in Sri Lanka

Daily Chance of Precipitation in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%70196186515NowNowBatticaloaBatticaloaColomboColomboAnuradhapuraAnuradhapura
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Colombo 7.2d5.8d9.5d15.7d16.4d13.5d9.9d9.6d13.0d19.5d18.8d12.6d
Anuradhapura 6.6d4.6d6.8d12.1d8.2d3.4d3.3d4.8d7.2d15.8d16.7d12.0d
Batticaloa 8.6d6.3d7.5d11.1d9.2d5.3d5.5d6.4d8.9d16.6d18.6d14.5d

Average Monthly Rainfall in Sri Lanka

Average Monthly Rainfall in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in9.
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
Colombo 2.2″1.7″2.6″5.4″6.0″3.9″2.3″2.4″4.2″8.2″8.6″4.5″
Anuradhapura 2.9″1.8″1.8″3.4″2.7″0.8″0.9″1.1″2.2″6.4″8.0″6.0″
Batticaloa 5.0″2.8″2.2″3.2″2.7″1.1″1.1″1.2″2.4″6.2″9.2″8.5″

Hours of Daylight in Sri Lanka

Hours of Daylight in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr12.511.7NowNowBatticaloaBatticaloaColomboColomboAnuradhapuraAnuradhapura
The number of hours during which the Sun is at least partly above the horizon.
Colombo 11.8h11.9h12.1h12.3h12.4h12.5h12.5h12.3h12.2h12.0h11.8h11.7h
Anuradhapura 11.7h11.9h12.1h12.3h12.5h12.6h12.6h12.4h12.2h11.9h11.7h11.7h
Batticaloa 11.7h11.9h12.1h12.3h12.5h12.6h12.5h12.4h12.2h11.9h11.8h11.7h

Chance of Muggy Conditions in Sri Lanka

Chance of Muggy Conditions in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%100941009210099NowNowBatticaloaBatticaloaColomboColombo
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Colombo 29.6d27.8d30.7d30.0d31.0d30.0d31.0d31.0d30.0d31.0d29.9d30.4d
Anuradhapura 29.4d26.7d29.5d29.7d31.0d30.0d31.0d31.0d30.0d30.9d29.7d30.3d
Batticaloa 30.9d28.8d30.9d30.0d31.0d30.0d31.0d31.0d29.9d31.0d30.0d30.9d

Average Wind Speed in Sri Lanka

Average Wind Speed in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph14.15.916.05.712.96.6NowNowBatticaloaBatticaloaColomboColomboAnuradhapuraAnuradhapura
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec

Average Water Temperature in Sri Lanka

Average Water Temperature in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°F86°F86°F87°F87°F858186818681NowNowBatticaloaBatticaloaColomboColomboAnuradhapuraAnuradhapura
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Colombo 82°F83°F84°F85°F84°F82°F81°F81°F82°F83°F83°F83°F
Anuradhapura 81°F82°F84°F86°F85°F83°F82°F81°F82°F83°F83°F82°F
Batticaloa 81°F82°F84°F86°F86°F85°F85°F84°F84°F84°F83°F81°F

Tourism Score in Sri Lanka

Tourism Score in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec002244668810104.
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in Sri Lanka

Beach/Pool Score in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.53.54.6NowNowBatticaloaBatticaloaColomboColomboAnuradhapuraAnuradhapura
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in Sri Lanka

Growing Season in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowBatticaloaBatticaloaColomboColomboAnuradhapuraAnuradhapura
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days in Sri Lanka

Growing Degree Days in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°F12,000°F12,000°FNowNowBatticaloaBatticaloaColomboColomboAnuradhapuraAnuradhapura
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy in Sri Lanka

Average Daily Incident Shortwave Solar Energy in Sri LankaJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh6.
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec

This report illustrates the typical weather for Colombo, Anuradhapura, and Batticaloa year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:


The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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