Mersing weather in July

In July, Mersing sees average daytime highs of 30°C and overnight lows near 25°C, with 134 mm of rain across 24 wet days and about 12.1 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 9% of the time in July, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of July to 12 h 06 min by month's end. Set against the rest of the year, July is Mersing's 2nd-clearest and 5th-windiest month. For the whole year in context, see Mersing's year-round climate.

Daytime high
30°
4th warmest
Overnight low
25°
8th coldest
Rainfall
134 mm
24 wet days
Daylight
12 h 06 min
7:06 AM – 7:14 PM
Cloud cover
76%
2nd clearest
Wind
9 km/h
5th windiest
Solar energy
5.06 kWh/m²
Travel score
3.3
out of 10

Mersing is town in Johor and district capital of Mersing District.

Founded
1977

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 30°C through the month.

A typical July day in Mersing reaches about 30°C in the afternoon and slips back to 25°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 31°C. Set against its neighbours, July runs on par with June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025
313025

How July really feels in Mersing

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.

Mersing weather by month

How July compares with the rest of the year at a glance. July is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°28222.511.94.3
Feb29° / 25°12417.111.94.4
Mar29° / 25°17122.1123.7
Apr30° / 25°17125.112.13.0
May31° / 26°16726.812.12.8
Jun30° / 25°13724.312.13.1
Jul30° / 25°1342412.13.3
Aug30° / 25°14925.912.13.1
Sep30° / 25°16925.7123.0
Oct30° / 25°23027.111.93.0
Nov29° / 25°36628.811.92.9
Dec28° / 25°41927.411.93.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 16% of July, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22674
32674
42674
52476
62476
72476
82476
92476
102476
112476
122476
132476
142476
152476
162476
172476
182476
192476
202476
212476
222575
232674
242674
252674
262674
272575
282575
292575
302674
312674

Chance of precipitation in July

Any precipitation

Mersing gets around 134 mm of rain over 24 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 78% and peaks near 79% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
178
278
378
478
577
677
777
877
977
1078
1178
1278
1379
1479
1579
1679
1779
1879
1979
2079
2178
2278
2378
2477
2577
2676
2776
2875
2975
3075
3175

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 81% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11684
21783
31783
41882
51882
61882
71882
81882
91882
101882
111882
121882
131882
141882
151882
161882
171882
181882
191882
201981
212080
222080
232179
242179
252278
262278
272377
282377
292377
302377
312377

Wind in July

Winds average 9 km/h in July.

Across July, 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
209calm
219calm
229calm
239calm
249calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 12 h 06 min at the start of July to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over July. Sunrise moves from 7:04 AM to 7:07 AM, and sunset from 7:12 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.17:047:12
212.17:047:12
312.17:047:12
412.17:047:13
512.17:057:13
612.17:057:13
712.17:057:13
812.17:057:13
912.17:057:13
1012.17:067:14
1112.17:067:14
1212.17:067:14
1312.17:067:14
1412.17:067:14
1512.17:067:14
1612.17:067:14
1712.17:077:14
1812.17:077:14
1912.17:077:14
2012.17:077:14
2112.17:077:14
2212.17:077:14
2312.17:077:14
2412.17:077:14
2512.17:077:14
2612.17:077:14
2712.17:077:14
2812.17:077:14
2912.17:077:14
3012.17:077:14
3112.17:077:14

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.06 kWh/m².

For context, solar energy here swings from a low near 4.01 kWh/m² to a high of 5.59 kWh/m² in March across the year — July's 5.06 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in July

Hazard calendar for Mersing

In seasonPeak

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

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

Mersing's rainy season runs October–January, 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 Mersing?

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

3.3
Sightseeing
5th-best month of the year
4.5
Beach & pool
4th-best month of the year

July is a weaker month for outdoor sightseeing in Mersing.

What to pack for Mersing in July

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

In July, Mersing sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Mersing 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 22 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.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Mersing in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mersing peaks around February 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeFeb 21UV 15Jul 11UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Very high
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Mersing 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 Mersing is worst in September — around 33 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (January, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1633 µg/m³Jan 1912 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb13Moderate
Mar15Moderate
Apr20Moderate
May24Moderate
Jun25Moderate
Jul28Moderate
Aug29Moderate
Sep33Moderate
Oct28Moderate
Nov17Moderate
Dec13Moderate
Location & terrain

Where is Mersing?

Mersing sits at 2.4°N, 103.8°E, 8 m above sea level, in Malaysia. The nearest listed city is Tioman, 54 km away.

Topography around Mersing

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

Within 3 km, the terrain around Mersing has only modest variations in elevation — a maximum elevation change of 92 m around an average of 9 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 270 m; within 80 km, large variations in elevation — a maximum elevation change of 1,017 m.

The land around Mersing is covered by trees (42%) and water (39%) within 3 km, trees (55%) and water (40%) within 16 km, and water (52%) and trees (46%) within 80 km.

3 km
92 m
16 km
270 m
80 km
1,017 m
treesgrasslandartificial surfacesbare terrainwater
July weather nearby: Tioman 54 km · Bandar Tenggara 67 km · Kampung Batu Empat 73 km · Kluang 73 km · Kota Tinggi 77 km · Kampung Sedenak 87 km · Simpang Renggam 89 km · Kampung Simpang Renggam 90 km

Malaysia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / G / M
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$13,125
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
22.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 581
Religion
Muslim 64%Buddhist 19%Christian 9%Hindu 6%

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 Mersing (2.4312°, 103.8405°, 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).