Kampong Speu weather in May

In May, Kampong Speu sees average daytime highs of 35°C and overnight lows near 26°C, with 133 mm of rain across 22.4 wet days and about 12.5 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 5% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is Kampong Speu's 8th-clearest and 10th-windiest month. For the whole year in context, see Kampong Speu's year-round climate.

Daytime high
35°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
133 mm
22.4 wet days
Daylight
12 h 30 min
5:42 AM – 6:14 PM
Cloud cover
81%
8th clearest
Wind
7 km/h
10th windiest
Solar energy
5.6 kWh/m²
Travel score
1.7
out of 10

Kampong Speu is city in Cambodia.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 35°C through the month.

A typical May day in Kampong Speu reaches about 35°C in the afternoon and slips back to 26°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 38°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13626
23626
33626
43626
53626
63526
73526
83526
93526
103526
113526
123526
133526
143526
153526
163526
173526
183526
193526
203526
213526
223526
233526
243526
253526
263526
273526
283526
293526
303426
313426

How May really feels in Kampong Speu

Once humidity and wind are folded in, May 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
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Kampong Speu weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°162.811.44.4
Feb34° / 23°10211.63.6
Mar36° / 25°457.911.92.4
Apr36° / 26°8515.312.21.8
May35° / 26°13322.412.51.7
Jun34° / 26°12321.712.72.1
Jul33° / 25°12522.912.62.3
Aug33° / 25°13723.112.42.4
Sep32° / 25°2062612.12.3
Oct31° / 24°22824.711.72.8
Nov31° / 24°7211.711.54.0
Dec31° / 23°274.711.34.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 83%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
22971
32971
42773
52674
62575
72476
82377
92278
102080
111981
121882
131783
141684
151585
161486
171387
181387
191387
201189
211189
221189
231189
241189
251090
261090
271090
281090
291090
301090
311090

Chance of precipitation in May

Any precipitation

Kampong Speu gets around 133 mm of rain over 22.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 72% and peaks near 76% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
163
264
365
466
567
668
768
869
970
1071
1171
1272
1372
1473
1573
1674
1774
1875
1975
2075
2175
2275
2375
2475
2576
2676
2776
2876
2976
3076
3176

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
135641
225543
325444
425345
525246
625048
714949
814851
914752
1014752
1114653
1214554
1314455
1414455
1504357
1604357
1704258
1804159
1904159
2004060
2104060
2204060
2304060
2404060
2504060
2604060
2704060
2804159
2904159
3004159
3104258

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:47 AM to 5:41 AM, and sunset from 6:11 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:476:11
212.45:476:11
312.45:466:11
412.45:466:12
512.45:466:12
612.45:456:12
712.55:456:12
812.55:456:12
912.55:446:12
1012.55:446:13
1112.55:446:13
1212.55:436:13
1312.55:436:13
1412.55:436:13
1512.55:436:14
1612.55:426:14
1712.55:426:14
1812.55:426:14
1912.55:426:15
2012.65:426:15
2112.65:426:15
2212.65:416:15
2312.65:416:16
2412.65:416:16
2512.65:416:16
2612.65:416:16
2712.65:416:17
2812.65:416:17
2912.65:416:17
3012.65:416:18
3112.65:416:18

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.6 kWh/m².

For context, solar energy here swings from a low near 4.59 kWh/m² to a high of 6.07 kWh/m² in March across the year — May's 5.6 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.6Bright
135.6Bright
145.6Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in May

Hazard calendar for Kampong Speu

In seasonPeak

In May, Kampong Speu sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Kampong Speu's rainy season runs May–October, when most of the year's rain falls.

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

Is May a good time to visit Kampong Speu?

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

1.7
Sightseeing
12th-best month of the year
3.7
Beach & pool
12th-best month of the year

May is a weaker month for outdoor sightseeing in Kampong Speu.

What to pack for Kampong Speu in May

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

In May, Kampong Speu sees daytime highs around 35°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Kampong Speu in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Kampong Speu peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 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 14Nov 23UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Kampong Speu in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Kampong Speu is worst in February — around 43 µg/m³ PM2.5 (poor), about 3.5× the cleanest month (August, 13 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1542 µg/m³Aug 1913 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb43Poor
Mar35Moderate
Apr26Moderate
May18Moderate
Jun14Moderate
Jul14Moderate
Aug13Moderate
Sep14Moderate
Oct17Moderate
Nov18Moderate
Dec19Moderate
Location & terrain

Where is Kampong Speu?

Kampong Speu sits at 11.5°N, 104.5°E, 35 m above sea level, in Cambodia. The nearest listed city is Phumĭ Véal Tônsay, 28 km away.

KandoengDangkaoBoeng Kak PirChrang Chamreh MuoyPhnom PenhTa Khmau

Topography around Kampong Speu

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

Within 3 km, the terrain around Kampong Speu has only modest variations in elevation — a maximum elevation change of 20 m around an average of 33 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 580 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,787 m.

The land around Kampong Speu is covered by cropland (41%) and artificial surfaces (22%) within 3 km, cropland (63%) within 16 km, and cropland (53%) and trees (28%) within 80 km.

3 km
20 m
16 km
580 m
80 km
1,787 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Phumĭ Véal Tônsay 28 km · Phumĭ Yoŭl Toŭng 30 km · Kandoeng 39 km · Dangkao 41 km · Boeng Kak Pir 42 km · Chrang Chamreh Muoy 44 km · Phnom Penh 45 km · Ta Khmau 47 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 Kampong Speu (11.4533°, 104.5208°, elevation 35 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. 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).