Sihanoukville weather in July

In July, Sihanoukville sees average daytime highs of 28°C and overnight lows near 26°C, with 558 mm of rain across 29.4 wet days and about 12.6 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 3% of the time in July, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of July to 12 h 30 min by month's end. Set against the rest of the year, July is Sihanoukville's 10th-clearest and 2nd-windiest month. For the whole year in context, see Sihanoukville's year-round climate.

Daytime high
28°
7th warmest
Overnight low
26°
8th coldest
Rainfall
558 mm
29.4 wet days
Daylight
12 h 36 min
5:55 AM – 6:28 PM
Cloud cover
87%
10th clearest
Wind
18 km/h
2nd windiest
Solar energy
4.66 kWh/m²
Travel score
3.1
out of 10

Sihanoukville is city in Preah Sihanouk Province, Cambodia.

Density
913/km²
people per km²
Founded
1964

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 28°C through the month.

A typical July day in Sihanoukville reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, July runs on par with June and on par with August.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826
312826

How July really feels in Sihanoukville

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.

Sihanoukville weather by month

How July compares with the rest of the year at a glance. July is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 26°379.811.46.4
Feb28° / 26°308.211.66.3
Mar29° / 26°6513.511.95.3
Apr29° / 27°1151912.24.2
May29° / 27°37827.912.53.1
Jun29° / 27°48927.712.63.1
Jul28° / 26°55829.412.63.1
Aug28° / 26°55628.912.33.3
Sep28° / 26°55428.412.13.4
Oct28° / 26°34327.111.83.6
Nov29° / 26°10415.411.54.8
Dec29° / 26°449.311.45.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 6% of July, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1991
2991
3991
4991
5991
61090
71090
81090
91090
101090
111090
121090
131090
141189
151189
161090
171090
181090
191090
20991
21991
22892
23892
24892
25793
26793
27793
28793
29694
30694
31694

Chance of precipitation in July

Any precipitation

Sihanoukville gets around 558 mm of rain over 29.4 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 95% 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
1394
1494
1594
1694
1794
1894
1994
2095
2195
2295
2395
2495
2595
2695
2795
2895
2995
3095
3195

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 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11288
21288
31288
41387
51387
61387
71387
81387
91387
101387
111387
121387
131387
141387
151387
161387
171288
181288
191288
201288
211288
221288
231288
241387
251387
261387
271387
281486
291486
301486
311486

Wind in July

Winds average 18 km/h in July.

Across July, daily wind ranges from about 18 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2720light breeze
2820light breeze
2920light breeze
3020breezy
3120breezy

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 36 min at the start of July to 12 h 30 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 5:51 AM to 5:58 AM, and sunset from 6:28 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:516:28
212.65:516:28
312.65:516:28
412.65:526:28
512.65:526:28
612.65:526:28
712.65:526:28
812.65:536:28
912.65:536:28
1012.65:536:28
1112.65:536:28
1212.65:546:29
1312.65:546:29
1412.65:546:29
1512.65:546:28
1612.65:556:28
1712.65:556:28
1812.65:556:28
1912.65:556:28
2012.55:556:28
2112.55:566:28
2212.55:566:28
2312.55:566:28
2412.55:566:28
2512.55:576:28
2612.55:576:27
2712.55:576:27
2812.55:576:27
2912.55:576:27
3012.55:576:27
3112.55:586:26

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.66 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.26 kWh/m² in March across the year — July's 4.66 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in July

Hazard calendar for Sihanoukville

In seasonPeak

In July, Sihanoukville sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Sihanoukville sits in the Pacific typhoon belt; the season peaks July–October.

Sihanoukville's monsoon runs May–October, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Sihanoukville?

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

3.1
Sightseeing
10th-best month of the year
3.7
Beach & pool
11th-best month of the year

July is a weaker month for outdoor sightseeing in Sihanoukville.

What to pack for Sihanoukville in July

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

In July, Sihanoukville sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Sihanoukville in July

The nearest coast averages about 29°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 May at about 31°C and coldest in January near 28°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
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Sihanoukville in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Sihanoukville peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 18UV 13Dec 12UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Sihanoukville 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 Sihanoukville is worst in February — around 24 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (September, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateFeb 1423 µg/m³Sep 2210 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb24Moderate
Mar19Moderate
Apr17Moderate
May12Moderate
Jun12Good
Jul14Moderate
Aug11Good
Sep10Good
Oct11Good
Nov12Good
Dec15Moderate
Location & terrain

Where is Sihanoukville?

Sihanoukville sits at 10.6°N, 103.5°E, 6 m above sea level, in Cambodia. The nearest listed city is Phu Quoc, 65 km away.

Phu QuocKampotHàm NinhKepHà TiênSmach Mean CheyKoh KongÂngk Tasaôm

Topography around Sihanoukville

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

Within 3 km, the terrain around Sihanoukville has only modest variations in elevation — a maximum elevation change of 124 m around an average of 21 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 288 m; within 80 km, large variations in elevation — a maximum elevation change of 1,064 m.

The land around Sihanoukville is covered by artificial surfaces (36%) and water (28%) within 3 km, water (62%) and trees (20%) within 16 km, and water (63%) and trees (26%) within 80 km.

3 km
124 m
16 km
288 m
80 km
1,064 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
July weather nearby: Phu Quoc 65 km · Kampot 71 km · Hàm Ninh 74 km · Kep 87 km · Hà Tiên 108 km · Smach Mean Chey 117 km · Koh Kong 127 km · Ângk Tasaôm 133 km

Cambodia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / C / G
230 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$2,872
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
1.8
per 100k, 2011
Road deaths
19.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 390
Religion
Buddhist 97%Muslim 2%other 1%Christian 0%

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 Sihanoukville (10.6093°, 103.5296°, elevation 6 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).