Ban Ang Sila weather in May

In May, Ban Ang Sila sees average daytime highs of 33°C and overnight lows near 27°C, with 145 mm of rain across 21.3 wet days and about 12.6 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 9% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 42 min by month's end. Set against the rest of the year, May is Ban Ang Sila's 8th-clearest and 7th-windiest month. For the whole year in context, see Ban Ang Sila's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
27°
12th coldest
Rainfall
145 mm
21.3 wet days
Daylight
12 h 36 min
5:54 AM – 6:31 PM
Cloud cover
80%
8th clearest
Wind
9 km/h
7th windiest
Solar energy
5.39 kWh/m²
Travel score
2.4
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical May day in Ban Ang Sila reaches about 33°C in the afternoon and slips back to 27°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, May runs on par with April and on par with June.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13427
23427
33427
43427
53427
63327
73327
83327
93327
103327
113327
123327
133327
143327
153327
163327
173327
183327
193327
203327
213327
223327
233327
243327
253327
263327
273327
283327
293327
303327
313327

How May really feels in Ban Ang Sila

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.

Ban Ang Sila weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°224.711.34.8
Feb32° / 24°235.111.64.3
Mar33° / 26°5810.711.93.5
Apr34° / 27°9014.112.32.8
May33° / 27°14521.312.62.4
Jun33° / 27°12320.912.82.6
Jul32° / 27°13322.512.72.7
Aug32° / 27°13623.312.42.7
Sep31° / 26°23225.112.12.5
Oct31° / 25°19521.711.73.1
Nov32° / 24°447.111.44.3
Dec31° / 23°122.711.25.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% 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 80%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23862
33565
43466
53268
63169
72872
82773
92575
102377
112278
122179
132080
141981
151882
161783
171684
181684
191486
201486
211486
221486
231387
241387
251387
261387
271387
281189
291090
301090
311090

Chance of precipitation in May

Any precipitation

Ban Ang Sila gets around 145 mm of rain over 21.3 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 69% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
160
260
361
462
563
663
764
865
966
1067
1168
1269
1370
1471
1572
1672
1772
1873
1973
2073
2173
2273
2373
2473
2573
2673
2773
2873
2973
3073
3173

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1793
2793
3793
4694
5694
6694
7694
8694
9694
10694
11694
12694
13694
14595
15595
16595
17595
18496
19496
20496
21397
22397
23397
24397
25397
26397
27298
28298
29298
30298
31298

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 42 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 5:59 AM to 5:52 AM, and sunset from 6:28 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:596:28
212.55:596:28
312.55:596:28
412.55:586:28
512.55:586:28
612.55:576:29
712.55:576:29
812.55:576:29
912.65:566:29
1012.65:566:29
1112.65:566:30
1212.65:556:30
1312.65:556:30
1412.65:556:30
1512.65:546:31
1612.65:546:31
1712.65:546:31
1812.65:546:32
1912.65:536:32
2012.65:536:32
2112.75:536:32
2212.75:536:33
2312.75:536:33
2412.75:536:33
2512.75:526:34
2612.75:526:34
2712.75:526:34
2812.75:526:34
2912.75:526:35
3012.75:526:35
3112.75:526:35

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.39 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 5.98 kWh/m² in April across the year — May's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.6Bright
65.6Bright
75.6Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Hazard calendar for Ban Ang Sila

In seasonPeak

In May, Ban Ang Sila sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Ban Ang Sila sits in the Pacific typhoon belt; the season peaks July–October.

Ban Ang Sila's rainy season runs May–October, when most of the year's rain falls.

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

Is May a good time to visit Ban Ang Sila?

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

2.4
Sightseeing
12th-best month of the year
4.4
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Ban Ang Sila.

What to pack for Ban Ang Sila in May

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

In May, Ban Ang Sila sees daytime highs around 33°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Ban Ang Sila in May

The nearest coast averages about 31°C in May — 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 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
Jan27Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Ban Ang Sila in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Ban Ang Sila peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 16UV 14Dec 17UV 9
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in Ban Ang Sila 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 Ban Ang Sila is worst in January — around 67 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (June, 34 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorPoorPoorJan 2366 µg/m³Jun 2034 µg/m³
PM2.5 (µg/m³)Level
Jan67Unhealthy
Feb65Unhealthy
Mar53Poor
Apr47Poor
May40Poor
Jun34Moderate
Jul36Poor
Aug36Poor
Sep47Poor
Oct57Unhealthy
Nov53Poor
Dec47Poor
Location & terrain

Where is Ban Ang Sila?

Ban Ang Sila sits at 13.3°N, 100.9°E, 8 m above sea level, in Thailand. The nearest listed city is Chon Buri, 6.0 km away.

Topography around Ban Ang Sila

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

Within 3 km, the terrain around Ban Ang Sila has only modest variations in elevation — a maximum elevation change of 21 m around an average of 3 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 891 m; within 80 km, large variations in elevation — a maximum elevation change of 874 m.

The land around Ban Ang Sila is covered by water (60%) and artificial surfaces (25%) within 3 km, water (59%) within 16 km, and water (33%) and trees (32%) within 80 km.

3 km
21 m
16 km
891 m
80 km
874 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: Chon Buri 6.0 km · Si Racha 19 km · Ban Bueng 20 km · Phan Thong 23 km · Bang Pakong 24 km · Bang Bo District 30 km · Phanat Nikhom 30 km · Ban Talat Bueng 31 km

Thailand travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$8,057
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
4.8
per 100k, 2011
Road deaths
32.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 402
Religion
Buddhist 93%Muslim 5%Christian 1%other 1%

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 Ban Ang Sila (13.3396°, 100.9296°, 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).