Cẩm Phả climate

Name: Cẩm Phả
Address: VN

Cẩm Phả is warmest in July, with average highs of 30 °C, and coldest in January, when nights average 14 °C. August is the wettest month (384 mm) and February the driest (25 mm). Figures are 1991–2020 climate normals.

Across a full year Cẩm Phả averages 1,836 mm of rain and 220 days above 25 °C.

Vietnam · population 190,232 · 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 July 30 °C
Coldest month January 14 °C
Driest month February 25 mm
Wettest month August 384 mm
Least cloud October 51 % cloud
Hottest on record July 35 °C
Coldest on record January 4.4 °C
Warmest sea August 30 °C

What to expectCẩm Phả through the year

Cẩm Phả has a clear annual cycle: average daily highs run from 19 °C in January to 30 °C in July, a swing of 12 °C in mean temperature across the year.

Counted across a normal year, 220 days a year reach 25 °C, 69 of them reach 30 °C. The warmest reading in the 1991–2020 record is 35 °C, in July.

Rain is strongly seasonal. August averages 384 mm against 25 mm in February — 15 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Cẩm Phả is warmest in August at 30 °C and coldest in February at 19 °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	18.6 °C	35 mm	75 %
February	19.9 °C	25 mm	78 %
March	22.6 °C	47 mm	80 %
April	26.0 °C	65 mm	76 %
May	28.6 °C	211 mm	78 %
June	30.2 °C	305 mm	88 %
July	30.2 °C	355 mm	85 %
August	30.0 °C	384 mm	81 %
September	29.3 °C	228 mm	68 %
October	27.4 °C	96 mm	51 %
November	24.2 °C	51 mm	55 %
December	20.2 °C	33 mm	63 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	18.6 °C	14.2 °C	16.4 °C	25.8 °C	4.4 °C	0	0
February	19.9 °C	15.6 °C	17.7 °C	28.0 °C	5.9 °C	1	0
March	22.6 °C	18.2 °C	20.3 °C	28.7 °C	10.0 °C	6	0
April	26.0 °C	21.8 °C	23.7 °C	32.7 °C	14.3 °C	20	1
May	28.6 °C	24.7 °C	26.5 °C	34.8 °C	18.3 °C	30	6
June	30.2 °C	26.5 °C	28.2 °C	34.7 °C	21.5 °C	30	17
July	30.2 °C	26.5 °C	28.2 °C	35.3 °C	23.7 °C	31	18
August	30.0 °C	25.9 °C	27.8 °C	34.7 °C	23.6 °C	31	16
September	29.3 °C	24.9 °C	27.0 °C	34.5 °C	18.4 °C	30	10
October	27.4 °C	22.7 °C	24.9 °C	32.0 °C	16.0 °C	28	1
November	24.2 °C	19.4 °C	21.7 °C	29.6 °C	10.8 °C	13	0
December	20.2 °C	15.4 °C	17.8 °C	27.8 °C	4.5 °C	1	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	35 mm	7	11 h/day	75 %	79 %	12 km/h	19.6 °C
February	25 mm	6	11 h/day	78 %	82 %	12 km/h	19.1 °C
March	47 mm	8	12 h/day	80 %	85 %	12 km/h	20.1 °C
April	65 mm	12	13 h/day	76 %	86 %	13 km/h	22.9 °C
May	211 mm	20	13 h/day	78 %	86 %	13 km/h	26.8 °C
June	305 mm	24	13 h/day	88 %	87 %	13 km/h	29.0 °C
July	355 mm	25	13 h/day	85 %	87 %	13 km/h	29.4 °C
August	384 mm	26	13 h/day	81 %	87 %	11 km/h	29.6 °C
September	228 mm	19	12 h/day	68 %	83 %	11 km/h	29.3 °C
October	96 mm	10	12 h/day	51 %	77 %	13 km/h	27.7 °C
November	51 mm	8	11 h/day	55 %	75 %	12 km/h	25.1 °C
December	33 mm	7	11 h/day	63 %	73 %	12 km/h	21.9 °C

How Cẩm Phả 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
Cẩm Phả	30 °C	14 °C	1,836 mm	220
Hạ Long · Vietnam	31 °C	14 °C	1,749 mm	230
Haiphong · Vietnam	32 °C	14 °C	1,773 mm	245
Thị Trấn Đông Triều · Vietnam	32 °C	13 °C	1,737 mm	251
Hải Dương · Vietnam	33 °C	13 °C	1,784 mm	252
Lạng Sơn · Vietnam	30 °C	10 °C	1,641 mm	220
Bắc Giang · Vietnam	32 °C	13 °C	1,873 mm	248

Planning a trip? See the best time to visit Cẩm Phả.

QuestionsCommon questions about Cẩm Phả’s climate

When is the best time to visit Cẩm Phả?

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

How hot does Cẩm Phả get?

In July, the warmest month, daily highs average 30 °C. About 69 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average 14 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Cẩm Phả?

August, averaging 384 mm over 26 days with rain. The driest month is February with 25 mm. The year as a whole averages 1,836 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 Cẩm Phả 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
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.