Ratchaburi weather in July

In July, Ratchaburi sees average daytime highs of 33°C and overnight lows near 26°C, with 133 mm of rain across 22.1 wet days and about 12.7 hours of daylight. It is the 5th-warmest and 4th-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 2% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of July to 12 h 36 min by month's end. Set against the rest of the year, July is Ratchaburi's 11th-clearest and 2nd-windiest month. For the whole year in context, see Ratchaburi's year-round climate.

Daytime high
33°
5th warmest
Overnight low
26°
9th coldest
Rainfall
133 mm
22.1 wet days
Daylight
12 h 42 min
6:05 AM – 6:48 PM
Cloud cover
89%
11th clearest
Wind
8 km/h
2nd windiest
Solar energy
4.56 kWh/m²
Travel score
2.3
out of 10

Ratchaburi is town in Ratchaburi province, Thailand.

Air quality
High
PM2.5 30 µg/m³ · 2019
Density
10,626/km²
people per km²

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 33°C through the month.

A typical July day in Ratchaburi reaches about 33°C in the afternoon and slips back to 26°C overnight — a 7°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, July runs about 1°C cooler than June and on par with August.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13326
23326
33326
43326
53326
63326
73326
83326
93326
103326
113326
123326
133326
143326
153326
163326
173326
183326
193326
203326
213326
223326
233326
243326
253326
263326
273326
283326
293326
303326
313326

How July really feels in Ratchaburi

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
17 feel dangerously hot (≥ 39°C)
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.

Ratchaburi weather by month

How July compares with the rest of the year at a glance. July is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°122.211.35.3
Feb33° / 23°102.411.54.2
Mar35° / 25°376.411.93.0
Apr36° / 27°6811.212.31.9
May35° / 27°12721.912.61.7
Jun34° / 27°11420.512.82.1
Jul33° / 26°13322.112.72.3
Aug33° / 26°14323.112.42.4
Sep32° / 26°19724.112.12.3
Oct32° / 25°18821.111.73.2
Nov31° / 24°456.411.44.6
Dec31° / 22°102.211.25.5

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 5% of July, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4892
5892
6793
7793
8793
9793
10892
11892
12892
13892
14892
15892
16892
17892
18892
19892
20793
21793
22793
23694
24694
25694
26694
27595
28595
29595
30595
31595

Chance of precipitation in July

Any precipitation

Ratchaburi gets around 133 mm of rain over 22.1 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 72% and peaks near 74% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
168
268
368
468
569
669
769
870
970
1071
1171
1272
1372
1472
1572
1672
1772
1873
1973
2073
2173
2273
2373
2473
2573
2673
2773
2873
2973
3074
3174

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
16634
26634
36634
46634
56634
66535
76535
86535
96535
106436
116436
126436
136337
146436
156436
166436
176535
186535
196634
206634
216634
226733
236733
246832
256832
266931
276931
287030
297030
307030
317030

Wind in July

Winds average 8 km/h in July.

Across July, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 48 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 12 minutes over July. Sunrise moves from 6:00 AM to 6:08 AM, and sunset from 6:48 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:006:48
212.86:016:48
312.86:016:48
412.86:016:48
512.86:016:48
612.86:026:48
712.86:026:48
812.86:026:48
912.86:036:48
1012.86:036:48
1112.86:036:48
1212.76:036:48
1312.76:046:48
1412.76:046:48
1512.76:046:48
1612.76:056:48
1712.76:056:48
1812.76:056:48
1912.76:056:48
2012.76:066:48
2112.76:066:48
2212.76:066:47
2312.76:066:47
2412.76:076:47
2512.76:076:47
2612.76:076:47
2712.66:076:46
2812.66:086:46
2912.66:086:46
3012.66:086:46
3112.66:086:45

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.56 kWh/m².

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 6.21 kWh/m² in April across the year — July's 4.56 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in July

Hazard calendar for Ratchaburi

In seasonPeak

In July, Ratchaburi sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Ratchaburi sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Ratchaburi's monsoon runs May–October, when most of the year's rain falls.

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

Is July a good time to visit Ratchaburi?

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

2.3
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 Ratchaburi.

What to pack for Ratchaburi in July

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

In July, Ratchaburi sees daytime highs around 33°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

Sea temperature near Ratchaburi in July

The nearest coast averages about 30°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 38 km away) 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
Feb28Warm
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Ratchaburi 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 Ratchaburi peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 20 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 15UV 13Nov 20UV 8
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar12Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec9Very high

Air quality in Ratchaburi 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 Ratchaburi is worst in February — around 44 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 17 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Ratchaburi's WHO annual average of 30 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1844 µg/m³Aug 1017 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb44Poor
Mar43Poor
Apr33Moderate
May23Moderate
Jun17Moderate
Jul17Moderate
Aug17Moderate
Sep21Moderate
Oct33Moderate
Nov35Moderate
Dec34Moderate
Location & terrain

Where is Ratchaburi?

Ratchaburi sits at 13.5°N, 99.8°E, 8 m above sea level, in Thailand. The nearest listed city is Damnoen Saduak, 15 km away.

Topography around Ratchaburi

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

Within 3 km, the terrain around Ratchaburi has only modest variations in elevation — a maximum elevation change of 43 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 231 m; within 80 km, large variations in elevation — a maximum elevation change of 1,189 m.

The land around Ratchaburi is covered by artificial surfaces (47%) and trees (27%) within 3 km, trees (50%) and cropland (29%) within 16 km, and trees (44%) and cropland (25%) within 80 km.

3 km
43 m
16 km
231 m
80 km
1,189 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Damnoen Saduak 15 km · Photharam 18 km · Bang Phae 21 km · Ban I Chang 21 km · Samut Songkhram 24 km · Chom Bueng 26 km · Ban Pong 32 km · Ban Phaeo 32 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 Ratchaburi (13.5367°, 99.8171°, 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).