Ban Chalong weather in May

In May, Ban Chalong sees average daytime highs of 29°C and overnight lows near 27°C, with 212 mm of rain across 23.6 wet days and about 12.4 hours of daylight. It is the 1st-warmest and 4th-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 6% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of May to 12 h 24 min by month's end. Set against the rest of the year, May is Ban Chalong's 7th-clearest and 10th-windiest month. For the whole year in context, see Ban Chalong's year-round climate.

Daytime high: 29°; 1st warmest
Overnight low: 27°; 11th coldest
Rainfall: 212 mm; 23.6 wet days
Daylight: 12 h 24 min; 6:12 AM – 6:34 PM
Cloud cover: 82%; 7th clearest
Wind: 15 km/h; 10th windiest
Solar energy: 5.5 kWh/m²
Travel score: 3.6; out of 10

← April Ban Chalong year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Ban Chalong reaches about 29°C in the afternoon and slips back to 27°C overnight — a 2°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, May runs on par with April and on par with June.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Avg low (°C)	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27

	Avg high (°C)	Avg low (°C)
1	29	27
2	29	27
3	29	27
4	29	27
5	29	27
6	29	27
7	29	27
8	29	27
9	29	27
10	29	27
11	29	27
12	29	27
13	29	27
14	29	27
15	29	27
16	29	27
17	29	27
18	29	27
19	29	27
20	29	27
21	29	27
22	29	27
23	29	27
24	29	27
25	29	27
26	29	27
27	29	27
28	29	27
29	29	27
30	29	27
31	29	27

How May really feels in Ban Chalong

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

heat index over the day's high

Days feeling ≤ 0°C

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 Chalong weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 26°	55	8	11.6	6.5
Feb	28° / 27°	24	4.7	11.7	6.6
Mar	29° / 27°	83	11	11.9	5.6
Apr	29° / 27°	122	18.1	12.2	4.4
May	29° / 27°	212	23.6	12.4	3.6
Jun	29° / 27°	179	20.8	12.4	3.9
Jul	28° / 27°	174	20.6	12.4	4.1
Aug	28° / 27°	195	20.8	12.3	4.2
Sep	28° / 26°	246	23.6	12	4.0
Oct	28° / 26°	285	27.6	11.8	3.7
Nov	28° / 26°	230	23.2	11.6	4.2
Dec	28° / 26°	120	13.6	11.6	5.7

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 8% of May, with mostly cloudy or overcast conditions the remaining 85%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	24	22	21	21	20	19	17	17	17	15	15	14	14	13	14	14	13	13	13	13	13	12	12	12	12	11	11	11	11	11	11
Cloudier (%)	76	78	79	79	80	81	83	83	83	85	85	86	86	87	86	86	87	87	87	87	87	88	88	88	88	89	89	89	89	89	89

	Clearer (%)	Cloudier (%)
1	24	76
2	22	78
3	21	79
4	21	79
5	20	80
6	19	81
7	17	83
8	17	83
9	17	83
10	15	85
11	15	85
12	14	86
13	14	86
14	13	87
15	14	86
16	14	86
17	13	87
18	13	87
19	13	87
20	13	87
21	13	87
22	12	88
23	12	88
24	12	88
25	12	88
26	11	89
27	11	89
28	11	89
29	11	89
30	11	89
31	11	89

Chance of precipitation in May

Any precipitation

Ban Chalong gets around 212 mm of rain over 23.6 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 77% and peaks near 80% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	75	76	76	77	78	78	79	79	79	80	80	79	79	79	79	78	78	77	76	76	75	74	74	74	74	74	74	74	75	75	75

	Rain chance (%)
1	75
2	76
3	76
4	77
5	78
6	78
7	79
8	79
9	79
10	80
11	80
12	79
13	79
14	79
15	79
16	78
17	78
18	77
19	76
20	76
21	75
22	74
23	74
24	74
25	74
26	74
27	74
28	74
29	75
30	75
31	75

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Oppressive (%)	9	8	8	8	8	7	7	7	8	8	8	8	8	8	8	8	8	8	8	9	9	9	9	9	9	9	9	10	10	10	10
Miserable (%)	91	92	92	92	92	93	93	93	92	92	92	92	92	92	92	92	92	92	92	91	91	91	91	91	91	91	91	90	90	90	90

	Oppressive (%)	Miserable (%)
1	9	91
2	8	92
3	8	92
4	8	92
5	8	92
6	7	93
7	7	93
8	7	93
9	8	92
10	8	92
11	8	92
12	8	92
13	8	92
14	8	92
15	8	92
16	8	92
17	8	92
18	8	92
19	8	92
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	10	90
29	10	90
30	10	90
31	10	90

Wind in May

Winds average 15 km/h in May.

Across May, daily wind ranges from about 13 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	13	13	13	14	14	14	14	14	14	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	16	16	16	16	16	16
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	13	light breeze
2	13	light breeze
3	13	light breeze
4	14	light breeze
5	14	light breeze
6	14	light breeze
7	14	light breeze
8	14	light breeze
9	14	light breeze
10	15	light breeze
11	15	light breeze
12	15	light breeze
13	15	light breeze
14	15	light breeze
15	15	light breeze
16	15	light breeze
17	15	light breeze
18	16	light breeze
19	16	light breeze
20	16	light breeze
21	16	light breeze
22	16	light breeze
23	16	light breeze
24	16	light breeze
25	16	light breeze
26	16	light breeze
27	16	light breeze
28	16	light breeze
29	16	light breeze
30	16	light breeze
31	16	light breeze

Sunrise & sunset in May

DaylightNight

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

Days grow by about 6 minutes over May. Sunrise moves from 6:16 AM to 6:11 AM, and sunset from 6:32 PM to 6:37 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4
Sunrise (AM)	6:16	6:15	6:15	6:15	6:14	6:14	6:14	6:14	6:13	6:13	6:13	6:13	6:13	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:12	6:11	6:11	6:11	6:11	6:11	6:11	6:11	6:11
Sunset (PM)	6:32	6:32	6:32	6:32	6:32	6:32	6:32	6:33	6:33	6:33	6:33	6:33	6:33	6:33	6:33	6:34	6:34	6:34	6:34	6:34	6:34	6:35	6:35	6:35	6:35	6:35	6:36	6:36	6:36	6:36	6:37

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	6:16	6:32
2	12.3	6:15	6:32
3	12.3	6:15	6:32
4	12.3	6:15	6:32
5	12.3	6:14	6:32
6	12.3	6:14	6:32
7	12.3	6:14	6:32
8	12.3	6:14	6:33
9	12.3	6:13	6:33
10	12.3	6:13	6:33
11	12.3	6:13	6:33
12	12.3	6:13	6:33
13	12.3	6:13	6:33
14	12.3	6:12	6:33
15	12.4	6:12	6:33
16	12.4	6:12	6:34
17	12.4	6:12	6:34
18	12.4	6:12	6:34
19	12.4	6:12	6:34
20	12.4	6:12	6:34
21	12.4	6:12	6:34
22	12.4	6:12	6:35
23	12.4	6:12	6:35
24	12.4	6:11	6:35
25	12.4	6:11	6:35
26	12.4	6:11	6:35
27	12.4	6:11	6:36
28	12.4	6:11	6:36
29	12.4	6:11	6:36
30	12.4	6:11	6:36
31	12.4	6:11	6:37

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.5 kWh/m².

For context, solar energy here swings from a low near 4.81 kWh/m² to a high of 6.5 kWh/m² in March across the year — May's 5.5 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	5.8	5.8	5.8	5.7	5.7	5.7	5.6	5.6	5.6	5.6	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.3	5.3	5.3	5.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.8	Bright
2	5.8	Bright
3	5.8	Bright
4	5.7	Bright
5	5.7	Bright
6	5.7	Bright
7	5.6	Bright
8	5.6	Bright
9	5.6	Bright
10	5.6	Bright
11	5.5	Bright
12	5.5	Bright
13	5.5	Bright
14	5.5	Bright
15	5.5	Bright
16	5.5	Bright
17	5.5	Bright
18	5.5	Bright
19	5.4	Bright
20	5.4	Bright
21	5.4	Bright
22	5.4	Bright
23	5.4	Bright
24	5.4	Bright
25	5.4	Bright
26	5.4	Bright
27	5.4	Bright
28	5.3	Bright
29	5.3	Bright
30	5.3	Bright
31	5.3	Bright

Planning a trip in May

Hazard calendar for Ban Chalong

In seasonPeak

In May, Ban Chalong sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Ban Chalong 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 May a good time to visit Ban Chalong?

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

3.6

Sightseeing

12th-best month of the year

4.6

Beach & pool

9th-best month of the year

May is a weaker month for outdoor sightseeing in Ban Chalong.

What to pack for Ban Chalong in May

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

In May, Ban Chalong sees daytime highs around 29°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Ban Chalong in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 24 km away) is warmest in May at about 30°C and coldest in January near 28°C.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	28	29	29	30	30	30	29	29	29	29	29	29
Comfort	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical

	Sea temperature (°C)	Comfort
Jan	28	Tropical
Feb	29	Tropical
Mar	29	Tropical
Apr	30	Tropical
May	30	Tropical
Jun	30	Tropical
Jul	29	Tropical
Aug	29	Tropical
Sep	29	Tropical
Oct	29	Tropical
Nov	29	Tropical
Dec	29	Tropical

UV index in Ban Chalong 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 Chalong peaks around August 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 10 (extreme).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	11	13	13	13	12	12	11	13	13	12	10	10
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	11	Extreme
Feb	13	Extreme
Mar	13	Extreme
Apr	13	Extreme
May	12	Extreme
Jun	12	Extreme
Jul	11	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	12	Extreme
Nov	10	Extreme
Dec	10	Extreme

Location & terrain

Where is Ban Chalong?

Ban Chalong sits at 7.8°N, 98.3°E, 13 m above sea level, in Thailand. The nearest listed city is Ban Talat Nua, 7.0 km away.

Topography around Ban Chalong

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

Within 3 km, the terrain around Ban Chalong has significant variations in elevation — a maximum elevation change of 353 m around an average of 58 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 536 m; within 80 km, large variations in elevation — a maximum elevation change of 994 m.

The land around Ban Chalong is covered by trees (50%) and artificial surfaces (29%) within 3 km, water (65%) and trees (23%) within 16 km, and water (78%) within 80 km.

3 km

353 m

trees 50%

16 km

536 m

water 65%

80 km

994 m

water 78%

treesgrasslandartificial surfacesbare terrainwatermangroves

← April Ban Chalong year-round climate June →Best places to visit in May

May weather nearby: Ban Talat Nua 7.0 km · Wichit 7.0 km · Ban Talat Yai 8.0 km · Kathu 8.0 km · Phuket 8.0 km · Ban Ratsada 10 km · Ban Ko Sire 11 km · Ban Kamala 14 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

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 Chalong (7.8447°, 98.339°, elevation 13 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	29	27
2	29	27
3	29	27
4	29	27
5	29	27
6	29	27
7	29	27
8	29	27
9	29	27
10	29	27
11	29	27
12	29	27
13	29	27
14	29	27
15	29	27
16	29	27
17	29	27
18	29	27
19	29	27
20	29	27
21	29	27
22	29	27
23	29	27
24	29	27
25	29	27
26	29	27
27	29	27
28	29	27
29	29	27
30	29	27
31	29	27

	Clearer (%)	Cloudier (%)
1	24	76
2	22	78
3	21	79
4	21	79
5	20	80
6	19	81
7	17	83
8	17	83
9	17	83
10	15	85
11	15	85
12	14	86
13	14	86
14	13	87
15	14	86
16	14	86
17	13	87
18	13	87
19	13	87
20	13	87
21	13	87
22	12	88
23	12	88
24	12	88
25	12	88
26	11	89
27	11	89
28	11	89
29	11	89
30	11	89
31	11	89

	Rain chance (%)
1	75
2	76
3	76
4	77
5	78
6	78
7	79
8	79
9	79
10	80
11	80
12	79
13	79
14	79
15	79
16	78
17	78
18	77
19	76
20	76
21	75
22	74
23	74
24	74
25	74
26	74
27	74
28	74
29	75
30	75
31	75

	Oppressive (%)	Miserable (%)
1	9	91
2	8	92
3	8	92
4	8	92
5	8	92
6	7	93
7	7	93
8	7	93
9	8	92
10	8	92
11	8	92
12	8	92
13	8	92
14	8	92
15	8	92
16	8	92
17	8	92
18	8	92
19	8	92
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	10	90
29	10	90
30	10	90
31	10	90

	Avg high (°C)	Avg low (°C)
1	29	27
2	29	27
3	29	27
4	29	27
5	29	27
6	29	27
7	29	27
8	29	27
9	29	27
10	29	27
11	29	27
12	29	27
13	29	27
14	29	27
15	29	27
16	29	27
17	29	27
18	29	27
19	29	27
20	29	27
21	29	27
22	29	27
23	29	27
24	29	27
25	29	27
26	29	27
27	29	27
28	29	27
29	29	27
30	29	27
31	29	27

	Clearer (%)	Cloudier (%)
1	24	76
2	22	78
3	21	79
4	21	79
5	20	80
6	19	81
7	17	83
8	17	83
9	17	83
10	15	85
11	15	85
12	14	86
13	14	86
14	13	87
15	14	86
16	14	86
17	13	87
18	13	87
19	13	87
20	13	87
21	13	87
22	12	88
23	12	88
24	12	88
25	12	88
26	11	89
27	11	89
28	11	89
29	11	89
30	11	89
31	11	89

	Rain chance (%)
1	75
2	76
3	76
4	77
5	78
6	78
7	79
8	79
9	79
10	80
11	80
12	79
13	79
14	79
15	79
16	78
17	78
18	77
19	76
20	76
21	75
22	74
23	74
24	74
25	74
26	74
27	74
28	74
29	75
30	75
31	75

	Oppressive (%)	Miserable (%)
1	9	91
2	8	92
3	8	92
4	8	92
5	8	92
6	7	93
7	7	93
8	7	93
9	8	92
10	8	92
11	8	92
12	8	92
13	8	92
14	8	92
15	8	92
16	8	92
17	8	92
18	8	92
19	8	92
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	10	90
29	10	90
30	10	90
31	10	90

	Avg high (°C)	Avg low (°C)
1	29	27
2	29	27
3	29	27
4	29	27
5	29	27
6	29	27
7	29	27
8	29	27
9	29	27
10	29	27
11	29	27
12	29	27
13	29	27
14	29	27
15	29	27
16	29	27
17	29	27
18	29	27
19	29	27
20	29	27
21	29	27
22	29	27
23	29	27
24	29	27
25	29	27
26	29	27
27	29	27
28	29	27
29	29	27
30	29	27
31	29	27

	Clearer (%)	Cloudier (%)
1	24	76
2	22	78
3	21	79
4	21	79
5	20	80
6	19	81
7	17	83
8	17	83
9	17	83
10	15	85
11	15	85
12	14	86
13	14	86
14	13	87
15	14	86
16	14	86
17	13	87
18	13	87
19	13	87
20	13	87
21	13	87
22	12	88
23	12	88
24	12	88
25	12	88
26	11	89
27	11	89
28	11	89
29	11	89
30	11	89
31	11	89

	Rain chance (%)
1	75
2	76
3	76
4	77
5	78
6	78
7	79
8	79
9	79
10	80
11	80
12	79
13	79
14	79
15	79
16	78
17	78
18	77
19	76
20	76
21	75
22	74
23	74
24	74
25	74
26	74
27	74
28	74
29	75
30	75
31	75

	Oppressive (%)	Miserable (%)
1	9	91
2	8	92
3	8	92
4	8	92
5	8	92
6	7	93
7	7	93
8	7	93
9	8	92
10	8	92
11	8	92
12	8	92
13	8	92
14	8	92
15	8	92
16	8	92
17	8	92
18	8	92
19	8	92
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	9	91
27	9	91
28	10	90
29	10	90
30	10	90
31	10	90