Muar weather in July

Name: Muar
Address: MY

In July, Muar has daytime highs averaging 29 °C, nights around 25 °C, with 22 wet days, and a sea temperature of 30 °C. Figures are 1991–2020 climate normals.

29.0°C Average high
24.9°C Average low
22days Wet days
155mm Rainfall
29.8°C Sea temperature
12h Daylight

Daily temperatures through July

Daily highDaily low Day of month on the horizontal axis. Highs peak at 29.1 °C and lows bottom out at 24.6 °C.

How July develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

Days	Avg high	Avg low	Chance of rain
1–10 July	29.0 °C	24.9 °C	71 %
11–20 July	28.9 °C	24.9 °C	73 %
21–31 July	29.0 °C	24.9 °C	68 %

Chance of a wet day (over 1 mm) by date in July. Wettest date over the 30 years: July 17, at 87 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure	Typical July	Share of the month
Days above 25 °C	31 of 31	100 %
Days above 30 °C	1.9 of 31	6 %
Days below 0 °C	0 of 31	0 %
Days with more than 1 mm rain	22 of 31	71 %

Conditions in July

Measure	Average
Mean temperature	27 °C
Record high (1991–2020)	31 °C
Record low (1991–2020)	23 °C
Relative humidity	84 %
Wind speed	13 km/h
Cloud cover	77 %

Where Muar ranks in July

Ranking	Position	Value
Warmest sea temperatures in Asia in July	43rdof 50	30 °C
Warmest sea temperatures in the world in July	47thof 50	30 °C

July compared with the months around it

Month	Avg high	Rainfall	Cloud
May	29.5 °C	201 mm	82 %
June	29.3 °C	157 mm	77 %
July	29.0 °C	155 mm	77 %
August	28.8 °C	168 mm	79 %
September	28.9 °C	164 mm	81 %

See all twelve months for Muar

July is the 6th warmest month here.
It is the 3rd driest month of the year.
It ranks 1st for least cloud cover.
Days last about 12 hours from sunrise to sunset.
It rains on 22 of 31 days — 71 % of the month.
Nights are about 4.0 °C cooler than the middle of the day.
The hottest July day on record since 1991 reached 31 °C, 2.1 °C above the usual daytime high.
Beach score: 66 / 100 — see how this is calculated.

Nearby destinations in July

Destination	Avg high	Wet days	Sea
Muar	29 °C	22	30
Malacca	29 °C	24	30
Batu Pahat	29 °C	23	30
Kluang	29 °C	24	–
Seremban	29 °C	23	–
Sepang	29 °C	22	30

QuestionsJuly in Muar, answered

How warm is Muar in July?

Daily highs average 29 °C and nights fall to about 25 °C, a spread of 4.0 °C between afternoon and dawn. That makes July the 4th warmest month of the year here.

Does it rain much in Muar in July?

July averages 155 mm of rain, spread over about 22 of the 31 days — 71 % of the month. Cloud cover averages 77 % of the sky.

Is the sea warm enough to swim in July?

The sea averages 30 °C off Muar in July. Most people find water below 20 °C bracing and above 25 °C comfortable for a long swim; this figure is a monthly surface average, so a sheltered bay on a still afternoon can be warmer.

How long are the days in July?

Muar averages 12 hours between sunrise and sunset in July. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.