Unawatuna weather in March

In March, Unawatuna sees average daytime highs of 29°C and overnight lows near 26°C, with 67 mm of rain across 14.2 wet days and about 12 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 39% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of March to 12 hours by month's end. Set against the rest of the year, March is Unawatuna's 1st-clearest and 9th-windiest month. For the whole year in context, see Unawatuna's year-round climate.

Daytime high
29°
1st warmest
Overnight low
26°
9th coldest
Rainfall
67 mm
14.2 wet days
Daylight
12 hours
6:20 AM – 6:17 PM
Cloud cover
52%
1st clearest
Wind
9 km/h
9th windiest
Solar energy
6.43 kWh/m²
Travel score
5.1
out of 10

Unawatuna is human settlement.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical March day in Unawatuna reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, March runs on par with February and on par with April.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12926
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302926
312926

How March really feels in Unawatuna

Once humidity and wind are folded in, March averages 29 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
29
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in March is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Unawatuna weather by month

How March compares with the rest of the year at a glance. March is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°6312.111.76.0
Feb28° / 25°5410.711.85.6
Mar29° / 26°6714.2125.1
Apr29° / 26°15323.112.13.8
May29° / 26°27528.312.33.3
Jun28° / 26°24427.412.33.5
Jul28° / 26°20627.312.33.8
Aug27° / 26°20527.312.23.8
Sep28° / 26°24626.5123.8
Oct28° / 26°26126.411.93.9
Nov28° / 25°25323.111.74.2
Dec28° / 25°14718.611.75.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in March, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of March, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35941
46040
56139
66238
76238
86238
96238
106238
116238
126337
136337
146337
156337
166337
176337
186238
196238
206139
216139
226040
236040
245941
255941
265842
275842
285644
295644
305545
315446

Chance of precipitation in March

Any precipitation

Unawatuna gets around 67 mm of rain over 14.2 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 47% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
139
239
340
441
541
642
743
844
944
1045
1145
1246
1346
1446
1546
1646
1746
1846
1946
2046
2147
2247
2348
2449
2550
2652
2754
2856
2958
3061
3163

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

Most of March feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, March lands in the oppressive band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
14888
24879
348610
448511
548412
648313
738215
838116
938017
1028018
1127820
1227721
1327622
1417623
1517425
1617326
1717128
1817029
1916831
2006733
2106436
2206238
2306040
2405743
2505545
2605248
2705050
2804753
2904555
3004357
3104159

Wind in March

Winds average 9 km/h in March.

Across March, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 54 min at the start of March to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over March. Sunrise moves from 6:26 AM to 6:13 AM, and sunset from 6:19 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:266:19
211.96:266:18
311.96:256:18
411.96:256:18
511.96:256:18
611.96:246:18
711.96:246:18
811.96:236:18
911.96:236:18
1011.96:236:18
1111.96:226:18
1211.96:226:18
1311.96:216:18
1411.96:216:18
1512.06:206:18
1612.06:206:17
1712.06:196:17
1812.06:196:17
1912.06:186:17
2012.06:186:17
2112.06:186:17
2212.06:176:17
2312.06:176:16
2412.06:166:16
2512.06:166:16
2612.06:156:16
2712.06:156:16
2812.06:146:16
2912.06:146:16
3012.06:136:15
3112.06:136:15

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.43 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.82 kWh/m² to a high of 6.43 kWh/m² in March across the year — March's 6.43 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in March

Hazard calendar for Unawatuna

In seasonPeak

None of Unawatuna's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Unawatuna sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Cyclone
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is March a good time to visit Unawatuna?

Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.1
Sightseeing
3rd-best month of the year
6.4
Beach & pool
3rd-best month of the year

March is a reasonable time to visit Unawatuna for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Unawatuna in March

From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In March, Unawatuna sees daytime highs around 29°C and nights near 26°C. Pack light clothes, rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Unawatuna in March

The nearest coast averages about 29°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in April at about 30°C and coldest in July near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May29Tropical
Jun28Tropical
Jul28Warm
Aug28Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec28Tropical

UV index in Unawatuna in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Unawatuna peaks around April 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 17UV 14Jan 11UV 9
UV index (midday)Level
Jan9Very high
Feb14Extreme
Mar12Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Very high

Air quality in Unawatuna in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in Unawatuna is worst in January — around 35 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (September, 16 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1834 µg/m³Sep 1316 µg/m³
PM2.5 (µg/m³)Level
Jan35Moderate
Feb31Moderate
Mar25Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul17Moderate
Aug17Moderate
Sep16Moderate
Oct18Moderate
Nov25Moderate
Dec30Moderate
Location & terrain

Where is Unawatuna?

Unawatuna sits at 6.0°N, 80.3°E, 0 m above sea level, in Sri Lanka. The nearest listed city is Galle, 5.0 km away.

MirissaAmbalangodaMataraDevinuwaraBentotaBeliatta

Topography around Unawatuna

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Unawatuna.

Within 3 km, the terrain around Unawatuna has only modest variations in elevation — a maximum elevation change of 75 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 226 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,357 m.

The land around Unawatuna is covered by trees (53%) and water (34%) within 3 km, water (51%) and trees (45%) within 16 km, and trees (51%) and water (46%) within 80 km.

3 km
75 m
16 km
226 m
80 km
1,357 m
treesgrasslandcroplandartificial surfaceswatermangroves
March weather nearby: Galle 5.0 km · Weligama 20 km · Mirissa 24 km · Ambalangoda 32 km · Matara 33 km · Devinuwara 39 km · Bentota 53 km · Beliatta 53 km

Sri Lanka travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G / M
230 V · 50 Hz
Prices
≈ 27% of US
price level, 2025
GDP per capita
$5,002
2025
Happiness
4.0 / 10
World Happiness, 2025
Safe drinking water
47%
of population, 2024
Homicide rate
3.3
per 100k, 2019
Road deaths
19.7
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 486
Religion
Buddhist 70%Hindu 13%Muslim 10%Roman Catholic 6%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Unawatuna (6.0212°, 80.2503°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).