Phumĭ Véal Tônsay weather in May

In May, Phumĭ Véal Tônsay sees average daytime highs of 35°C and overnight lows near 26°C, with 137 mm of rain across 22.5 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 6% of the time in May, and the air most often feels oppressive.

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 Phumĭ Véal Tônsay's 8th-clearest and 9th-windiest month. For the whole year in context, see Phumĭ Véal Tônsay's year-round climate.

Daytime high
35°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
137 mm
22.5 wet days
Daylight
12 h 30 min
5:42 AM – 6:14 PM
Cloud cover
80%
8th clearest
Wind
7 km/h
9th windiest
Solar energy
5.69 kWh/m²
Travel score
1.6
out of 10

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 Phumĭ Véal Tônsay 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
63626
73626
83626
93626
103526
113526
123526
133526
143526
153526
163526
173526
183526
193526
203526
213526
223526
233526
243526
253526
263526
273526
283526
293526
303526
313526

How May really feels in Phumĭ Véal Tônsay

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.

Phumĭ Véal Tônsay 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° / 23°122.511.44.3
Feb34° / 24°81.711.63.5
Mar36° / 25°427.111.92.3
Apr36° / 26°7914.712.31.7
May35° / 26°13722.512.51.6
Jun34° / 26°13023.712.71.9
Jul33° / 25°13124.812.62.1
Aug33° / 25°1512512.42.2
Sep32° / 25°22126.712.12.2
Oct31° / 24°21123.911.72.9
Nov31° / 24°6610.311.54.1
Dec31° / 23°22411.34.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 82%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23169
33169
42872
52773
62773
72674
82575
92278
102278
112179
121981
131981
141783
151684
161684
171387
181387
191387
201387
211288
221288
231288
241288
251288
261288
271288
281288
291288
301288
311288

Chance of precipitation in May

Any precipitation

Phumĭ Véal Tônsay gets around 137 mm of rain over 22.5 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 80% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
161
262
363
464
565
666
767
868
968
1069
1170
1270
1371
1472
1573
1673
1774
1874
1975
2075
2176
2276
2377
2477
2577
2678
2778
2879
2979
3080
3180

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
146333
246234
346135
436136
536037
635839
735740
825741
925642
1025444
1125345
1215346
1315247
1415148
1515049
1614950
1714851
1814752
1904654
2004654
2104555
2204555
2304555
2404555
2504555
2604654
2704654
2804654
2904753
3004753
3104852

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
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
258calm
268calm
278calm
288calm
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 5:40 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
212.45:466:11
312.45:466:11
412.45:456:12
512.45:456:12
612.55:456:12
712.55:446:12
812.55:446:12
912.55:446:13
1012.55:436:13
1112.55:436:13
1212.55:436:13
1312.55:436:13
1412.55:426:14
1512.55:426:14
1612.55:426:14
1712.55:426:14
1812.65:416:14
1912.65:416:15
2012.65:416:15
2112.65:416:15
2212.65:416:16
2312.65:416:16
2412.65:416:16
2512.65:406:16
2612.65:406:17
2712.65:406:17
2812.65:406:17
2912.65:406:17
3012.65:406:18
3112.65:406:18

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.69 kWh/m².

For context, solar energy here swings from a low near 4.64 kWh/m² to a high of 6.11 kWh/m² in March across the year — May's 5.69 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Phumĭ Véal Tônsay

In seasonPeak

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

Phumĭ Véal Tônsay'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 Phumĭ Véal Tônsay?

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

1.6
Sightseeing
12th-best month of the year
3.6
Beach & pool
12th-best month of the year

May is a weaker month for outdoor sightseeing in Phumĭ Véal Tônsay.

What to pack for Phumĭ Véal Tônsay in May

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

In May, Phumĭ Véal Tônsay sees daytime highs around 35°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

UV index in Phumĭ Véal Tônsay 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 Phumĭ Véal Tônsay 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 Phumĭ Véal Tônsay 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 Phumĭ Véal Tônsay is worst in February — around 45 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (November, 12 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateFeb 1744 µg/m³Nov 1912 µg/m³
PM2.5 (µg/m³)Level
Jan29Moderate
Feb45Poor
Mar36Poor
Apr27Moderate
May16Moderate
Jun13Moderate
Jul13Moderate
Aug12Good
Sep12Moderate
Oct13Moderate
Nov12Good
Dec13Moderate
Location & terrain

Where is Phumĭ Véal Tônsay?

Phumĭ Véal Tônsay sits at 11.7°N, 104.6°E, 46 m above sea level, in Cambodia. The nearest listed city is Kampong Speu, 28 km away.

Chrang Chamreh MuoyBoeng Kak PirPhnom PenhDangkaoTa KhmauPhumĭ Yoŭl ToŭngKandoeng

Topography around Phumĭ Véal Tônsay

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

Within 3 km, the terrain around Phumĭ Véal Tônsay has only modest variations in elevation — a maximum elevation change of 21 m around an average of 42 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 217 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,787 m.

The land around Phumĭ Véal Tônsay is covered by cropland (74%) within 3 km, cropland (71%) and grassland (21%) within 16 km, and cropland (54%) and trees (24%) within 80 km.

3 km
21 m
16 km
217 m
80 km
1,787 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Kampong Speu 28 km · Chrang Chamreh Muoy 34 km · Boeng Kak Pir 36 km · Phnom Penh 39 km · Dangkao 40 km · Ta Khmau 47 km · Phumĭ Yoŭl Toŭng 49 km · Kandoeng 53 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 Phumĭ Véal Tônsay (11.6962°, 104.5806°, elevation 46 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).