Rayong weather in July

In July, Rayong sees average daytime highs of 31°C and overnight lows near 26°C, with 206 mm of rain across 25 wet days and about 12.7 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 1% of the time in July, and the air most often feels miserable.

Daylight stretches from about 12 h 42 min at the start of July to 12 h 36 min by month's end. Set against the rest of the year, July is Rayong's 9th-clearest and 1st-windiest month. For the whole year in context, see Rayong's year-round climate.

Daytime high
31°
8th warmest
Overnight low
26°
10th coldest
Rainfall
206 mm
25 wet days
Daylight
12 h 42 min
6:00 AM – 6:41 PM
Cloud cover
88%
9th clearest
Wind
12 km/h
1st windiest
Solar energy
4.89 kWh/m²
Travel score
2.8
out of 10

Rayong is city in Rayong province, Thailand.

Air quality
Elevated
PM2.5 19.2 µg/m³ · 2019
Density
6,297/km²
people per km²
Founded
1917

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 31°C through the month.

A typical July day in Rayong reaches about 31°C in the afternoon and slips back to 26°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, July runs on par with June and on par with August.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83126
93126
103126
113126
123126
133126
143126
153126
163126
173126
183126
193126
203126
213126
223126
233126
243126
253126
263126
273126
283126
293126
303126
313126

How July really feels in Rayong

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.

Rayong weather by month

How July compares with the rest of the year at a glance. July is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°28611.35.1
Feb31° / 24°326.911.64.8
Mar32° / 25°8114.211.94.0
Apr32° / 26°1331912.33.1
May32° / 26°2202512.62.6
Jun31° / 26°21024.512.72.7
Jul31° / 26°2062512.72.8
Aug31° / 26°19624.912.42.8
Sep31° / 26°30126.412.12.6
Oct31° / 25°25623.211.73.1
Nov31° / 24°598.611.44.5
Dec31° / 23°173.411.35.3

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 7% of July, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
21189
31090
4991
5991
6991
71090
81090
91090
101090
111090
121090
131090
141090
151090
161090
17991
18991
19892
20892
21892
22793
23793
24694
25694
26595
27496
28496
29496
30496
31496

Chance of precipitation in July

Any precipitation

Rayong gets around 206 mm of rain over 25 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 80% and peaks near 83% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
177
277
377
477
577
678
778
878
979
1079
1179
1280
1380
1480
1580
1681
1781
1881
1982
2082
2182
2282
2383
2483
2583
2683
2783
2883
2983
3083
3182

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 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1397
2397
3397
4496
5496
6496
7595
8595
9595
10694
11694
12694
13793
14793
15793
16793
17793
18793
19694
20694
21694
22694
23694
24694
25793
26793
27793
28793
29793
30892
31892

Wind in July

Winds average 12 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 42 min at the start of July to 12 h 36 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 5:56 AM to 6:04 AM, and sunset from 6:40 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:566:40
212.75:566:41
312.75:576:41
412.75:576:41
512.75:576:41
612.75:576:41
712.75:586:41
812.75:586:41
912.75:586:41
1012.75:596:41
1112.75:596:41
1212.75:596:41
1312.75:596:41
1412.76:006:41
1512.76:006:41
1612.76:006:41
1712.76:006:41
1812.76:016:41
1912.76:016:41
2012.76:016:41
2112.66:016:40
2212.66:026:40
2312.66:026:40
2412.66:026:40
2512.66:026:40
2612.66:036:40
2712.66:036:39
2812.66:036:39
2912.66:036:39
3012.66:046:39
3112.66:046:38

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.89 kWh/m².

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 5.93 kWh/m² in April across the year — July's 4.89 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in July

Hazard calendar for Rayong

In seasonPeak

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

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

Rayong'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 July a good time to visit Rayong?

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

2.8
Sightseeing
8th-best month of the year
4.2
Beach & pool
8th-best month of the year

July is a weaker month for outdoor sightseeing in Rayong.

What to pack for Rayong in July

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

In July, Rayong sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Rayong 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 at the nearest coast (about 14 km away) 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
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Rayong 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 Rayong peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 14UV 9
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov9Very high
Dec9Very high

Air quality in Rayong 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 Rayong is worst in January — around 28 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (June, 12 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Rayong's WHO annual average of 19.2 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 2428 µg/m³Jun 2012 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb28Moderate
Mar21Moderate
Apr19Moderate
May15Moderate
Jun12Moderate
Jul13Moderate
Aug12Moderate
Sep15Moderate
Oct22Moderate
Nov22Moderate
Dec21Moderate
Location & terrain

Where is Rayong?

Rayong sits at 12.7°N, 101.3°E, 7 m above sea level, in Thailand. The nearest listed city is Ban Phe, 20 km away.

Topography around Rayong

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

Within 3 km, the terrain around Rayong has only modest variations in elevation — a maximum elevation change of 32 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 334 m; within 80 km, large variations in elevation — a maximum elevation change of 1,083 m.

The land around Rayong is covered by artificial surfaces (50%) and trees (25%) within 3 km, water (38%) and trees (35%) within 16 km, and water (47%) and trees (40%) within 80 km.

3 km
32 m
16 km
334 m
80 km
1,083 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
July weather nearby: Ban Phe 20 km · Ban Chang 23 km · Sattahip 39 km · Klaeng 44 km · Pattaya 49 km · Ban Talat Bueng 51 km · Bang Lamung 54 km · Si Racha 65 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 Rayong (12.6809°, 101.258°, elevation 7 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).