Mulleriyawa weather in July

In July, Mulleriyawa sees average daytime highs of 29°C and overnight lows near 25°C, with 245 mm of rain across 29.2 wet days and about 12.4 hours of daylight. It is the 11th-warmest and 6th-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 2% of the time in July, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of July to 12 h 18 min by month's end. Set against the rest of the year, July is Mulleriyawa's 11th-clearest and 3rd-windiest month. For the whole year in context, see Mulleriyawa's year-round climate.

Daytime high
29°
11th warmest
Overnight low
25°
10th coldest
Rainfall
245 mm
29.2 wet days
Daylight
12 h 24 min
6:05 AM – 6:27 PM
Cloud cover
85%
11th clearest
Wind
11 km/h
3rd windiest
Solar energy
4.64 kWh/m²
Travel score
2.9
out of 10

Mulleriyawa is city in Colombo, Sri Lanka.

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

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

A typical July day in Mulleriyawa reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°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, July runs on par with June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How July really feels in Mulleriyawa

Once humidity and wind are folded in, July averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Mulleriyawa weather by month

How July compares with the rest of the year at a glance. July is the 11th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°668.411.64.4
Feb33° / 24°658.611.83.8
Mar33° / 25°9414.8123.1
Apr32° / 25°19225.412.12.5
May31° / 26°26429.412.32.5
Jun30° / 25°27928.712.42.7
Jul29° / 25°24529.212.42.9
Aug29° / 25°21929.112.22.9
Sep29° / 25°24727.8122.9
Oct30° / 24°35928.211.82.9
Nov30° / 24°33723.911.73.2
Dec30° / 23°17816.111.64.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 7% of July, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11189
21189
31090
41090
5991
6991
7991
8892
9892
10892
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
261090
271090
281090
291090
301090
311189

Chance of precipitation in July

Any precipitation

Mulleriyawa gets around 245 mm of rain over 29.2 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 94% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
195
295
395
495
595
695
795
895
995
1095
1195
1295
1395
1495
1594
1694
1794
1894
1994
2094
2193
2293
2393
2493
2593
2693
2793
2893
2994
3094
3194

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11486
21585
31783
41882
51981
62080
72179
82278
92377
102476
112575
122674
132773
142872
152872
162971
172971
182971
192971
202971
212971
222971
232872
242872
252773
262773
272674
282674
292575
302476
312476

Wind in July

Winds average 11 km/h in July.

Across July, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 24 min at the start of July to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over July. Sunrise moves from 6:02 AM to 6:07 AM, and sunset from 6:26 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:026:26
212.46:026:26
312.46:026:26
412.46:026:26
512.46:036:26
612.46:036:26
712.46:036:26
812.46:036:26
912.46:036:27
1012.46:046:27
1112.46:046:27
1212.46:046:27
1312.46:046:27
1412.46:046:27
1512.46:056:27
1612.46:056:27
1712.46:056:27
1812.46:056:27
1912.46:056:27
2012.46:066:27
2112.46:066:27
2212.36:066:27
2312.36:066:27
2412.36:066:27
2512.36:066:27
2612.36:076:26
2712.36:076:26
2812.36:076:26
2912.36:076:26
3012.36:076:26
3112.36:076:26

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.64 kWh/m².

For context, solar energy here swings from a low near 4.43 kWh/m² to a high of 6.15 kWh/m² in March across the year — July's 4.64 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in July

Hazard calendar for Mulleriyawa

In seasonPeak

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

Mulleriyawa 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 July a good time to visit Mulleriyawa?

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

2.9
Sightseeing
6th-best month of the year
3.8
Beach & pool
10th-best month of the year

July is a weaker month for outdoor sightseeing in Mulleriyawa.

What to pack for Mulleriyawa in July

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

In July, Mulleriyawa sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Mulleriyawa in July

The nearest coast averages about 28°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in April at about 30°C and coldest in August near 27°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May29Tropical
Jun28Tropical
Jul28Warm
Aug27Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec28Tropical

UV index in Mulleriyawa in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mulleriyawa peaks around September 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highSep 10UV 13Dec 15UV 10
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Mulleriyawa in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mulleriyawa is worst in January — around 84 µg/m³ PM2.5 (unhealthy), about 2.8× the cleanest month (July, 29 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1483 µg/m³Jul 2129 µg/m³
PM2.5 (µg/m³)Level
Jan84Unhealthy
Feb78Unhealthy
Mar73Unhealthy
Apr62Unhealthy
May44Poor
Jun31Moderate
Jul29Moderate
Aug30Moderate
Sep35Poor
Oct52Poor
Nov74Unhealthy
Dec81Unhealthy
Location & terrain

Where is Mulleriyawa?

Mulleriyawa sits at 6.9°N, 79.9°E, 8 m above sea level, in Sri Lanka. The nearest listed city is Kotikawatta, 2.0 km away.

Topography around Mulleriyawa

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

Within 3 km, the terrain around Mulleriyawa has only modest variations in elevation — a maximum elevation change of 41 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 179 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,060 m.

The land around Mulleriyawa is covered by trees (49%) and artificial surfaces (44%) within 3 km, trees (49%), artificial surfaces (25%) and water (21%) within 16 km, and trees (62%) and water (34%) within 80 km.

3 km
41 m
16 km
179 m
80 km
2,060 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Kotikawatta 2.0 km · Kelaniya 3.0 km · Battaramulla South 4.0 km · Kolonnawa 5.0 km · Pita Kotte 6.0 km · Sri Jayewardenepura Kotte 6.0 km · Peliyagoda 6.0 km · Wattala 8.0 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 Mulleriyawa (6.933°, 79.9297°, elevation 8 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).