Phú Mỹ climate

Name: Phú Mỹ
Address: VN

Phú Mỹ is warmest in April, with average highs of 33 °C, and coldest in January, when nights average 22 °C. September is the wettest month (319 mm) and February the driest (11 mm). Figures are 1991–2020 climate normals.

Across a full year Phú Mỹ averages 1,987 mm of rain and 364 days above 25 °C.

Vietnam · population 287,055 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month April 33 °C
Coldest month January 22 °C
Driest month February 11 mm
Wettest month September 319 mm
Least cloud March 49 % cloud
Hottest on record April 38 °C
Coldest on record January 17 °C
Warmest sea May 30 °C

What to expectPhú Mỹ through the year

Phú Mỹ changes little through the year. Average daily highs stay between 30 and 33 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 364 days a year reach 25 °C, 234 of them reach 30 °C. The warmest reading in the 1991–2020 record is 38 °C, in April.

Rain is strongly seasonal. September averages 319 mm against 11 mm in February — 30 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Phú Mỹ is warmest in May at 30 °C and coldest in January at 26 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	30.4 °C	22 mm	60 %
February	31.8 °C	11 mm	50 %
March	32.8 °C	25 mm	49 %
April	33.1 °C	67 mm	56 %
May	31.9 °C	203 mm	78 %
June	30.4 °C	270 mm	84 %
July	29.9 °C	291 mm	84 %
August	30.0 °C	296 mm	85 %
September	29.8 °C	319 mm	87 %
October	29.5 °C	273 mm	81 %
November	29.7 °C	140 mm	70 %
December	29.6 °C	69 mm	71 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	30.4 °C	22.3 °C	25.7 °C	34.4 °C	17.3 °C	31	18
February	31.8 °C	23.0 °C	26.5 °C	35.8 °C	18.3 °C	28	25
March	32.8 °C	24.4 °C	27.7 °C	36.0 °C	20.2 °C	31	30
April	33.1 °C	25.5 °C	28.5 °C	37.6 °C	22.2 °C	30	29
May	31.9 °C	25.6 °C	28.1 °C	36.8 °C	23.7 °C	31	26
June	30.4 °C	25.0 °C	27.1 °C	34.1 °C	22.7 °C	30	20
July	29.9 °C	24.7 °C	26.6 °C	32.4 °C	22.9 °C	31	16
August	30.0 °C	24.6 °C	26.6 °C	32.2 °C	23.1 °C	31	17
September	29.8 °C	24.3 °C	26.3 °C	32.4 °C	22.7 °C	30	15
October	29.5 °C	24.0 °C	26.1 °C	32.5 °C	20.7 °C	31	12
November	29.7 °C	23.5 °C	26.1 °C	33.3 °C	18.5 °C	30	12
December	29.6 °C	22.7 °C	25.7 °C	33.7 °C	17.5 °C	31	13

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	22 mm	4	12 h/day	60 %	74 %	12 km/h	25.9 °C
February	11 mm	2	12 h/day	50 %	70 %	14 km/h	26.0 °C
March	25 mm	4	12 h/day	49 %	71 %	15 km/h	27.2 °C
April	67 mm	11	12 h/day	56 %	75 %	14 km/h	28.9 °C
May	203 mm	24	13 h/day	78 %	82 %	13 km/h	29.9 °C
June	270 mm	28	13 h/day	84 %	87 %	13 km/h	29.4 °C
July	291 mm	29	13 h/day	84 %	88 %	14 km/h	28.6 °C
August	296 mm	29	12 h/day	85 %	88 %	15 km/h	28.5 °C
September	319 mm	28	12 h/day	87 %	89 %	13 km/h	28.6 °C
October	273 mm	27	12 h/day	81 %	88 %	10 km/h	28.7 °C
November	140 mm	17	12 h/day	70 %	85 %	10 km/h	28.1 °C
December	69 mm	10	12 h/day	71 %	80 %	10 km/h	26.9 °C

How Phú Mỹ compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Phú Mỹ	33 °C	22 °C	1,987 mm	364
Thành Phố Bà Rịa · Vietnam	32 °C	23 °C	1,864 mm	364
Vũng Tàu · Vietnam	31 °C	23 °C	1,810 mm	364
Xuân Lộc · Vietnam	33 °C	21 °C	2,036 mm	362
Thủ Đức · Vietnam	34 °C	22 °C	1,883 mm	364
Cần Giuộc · Vietnam	33 °C	22 °C	1,886 mm	364
Biên Hòa · Vietnam	34 °C	22 °C	1,924 mm	365

Where Phú Mỹ ranks

Ranking	Position	Value
Best beach destinations in Asia in January	44th of 50	95/100
The warmest places in Asia in January	48th of 50	30 °C

Planning a trip? See the best time to visit Phú Mỹ.

QuestionsCommon questions about Phú Mỹ’s climate

When is the best time to visit Phú Mỹ?

That depends on what you want, so the honest answer is a comparison rather than a single month. January, October, December sit closest to 20 °C on average, April is the warmest month and February the driest. The month-by-month table above has the full picture.

How hot does Phú Mỹ get?

In April, the warmest month, daily highs average 33 °C. About 234 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average 22 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Phú Mỹ?

September, averaging 319 mm over 28 days with rain. The driest month is February with 11 mm. The year as a whole averages 1,987 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Phú Mỹ rather than what any particular week will bring. Individual years can differ substantially from the normal.

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
Data point: 10.633°, 107.067° (the coordinates the reanalysis values are taken for)
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: monthly rankings, daylight hours, beach and comfort scores. 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.