Ciudad Obregón climate

Name: Ciudad Obregón
Address: MX

Ciudad Obregón is warmest in June, with average highs of 38 °C, and coldest in January, when nights average 11 °C. August is the wettest month (88 mm) and May the driest (0.7 mm). Figures are 1991–2020 climate normals.

Across a full year Ciudad Obregón averages 337 mm of rain and 326 days above 25 °C.

Mexico · population 329,404 · 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 June 38 °C
Coldest month January 11 °C
Driest month May 1 mm
Wettest month August 88 mm
Least cloud June 18 % cloud
Hottest on record September 45 °C
Coldest on record February 2.4 °C

What to expectCiudad Obregón through the year

Ciudad Obregón has a clear annual cycle: average daily highs run from 26 °C in January to 38 °C in June, a swing of 14 °C in mean temperature across the year.

Counted across a normal year, 326 days a year reach 25 °C, 245 of them reach 30 °C. The warmest reading in the 1991–2020 record is 45 °C, in September.

Rain is strongly seasonal. August averages 88 mm against 1 mm in May — 124 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	25.8 °C	11 mm	34 %
February	27.0 °C	16 mm	38 %
March	29.9 °C	6 mm	31 %
April	32.8 °C	1 mm	28 %
May	36.0 °C	1 mm	18 %
June	38.4 °C	10 mm	18 %
July	37.5 °C	58 mm	56 %
August	36.6 °C	88 mm	54 %
September	35.7 °C	85 mm	32 %
October	34.6 °C	28 mm	20 %
November	30.0 °C	17 mm	29 %
December	25.6 °C	16 mm	35 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	25.8 °C	10.6 °C	17.4 °C	33.1 °C	3.7 °C	19	3
February	27.0 °C	11.4 °C	18.5 °C	37.0 °C	2.4 °C	20	5
March	29.9 °C	13.1 °C	20.9 °C	39.2 °C	6.7 °C	28	16
April	32.8 °C	15.3 °C	23.8 °C	41.6 °C	9.3 °C	30	25
May	36.0 °C	18.5 °C	27.2 °C	43.5 °C	11.5 °C	31	30
June	38.4 °C	23.8 °C	30.8 °C	44.7 °C	15.1 °C	30	30
July	37.5 °C	26.5 °C	31.4 °C	45.1 °C	21.8 °C	31	31
August	36.6 °C	26.4 °C	30.8 °C	44.7 °C	21.1 °C	31	31
September	35.7 °C	25.1 °C	29.7 °C	45.3 °C	17.6 °C	30	29
October	34.6 °C	20.7 °C	27.1 °C	43.2 °C	10.4 °C	31	28
November	30.0 °C	15.0 °C	21.9 °C	39.4 °C	7.2 °C	27	16
December	25.6 °C	11.0 °C	17.6 °C	34.2 °C	3.9 °C	18	3

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	11 mm	2	11 h/day	34 %	55 %	12 km/h
February	16 mm	2	11 h/day	38 %	53 %	13 km/h
March	6 mm	1	12 h/day	31 %	46 %	15 km/h
April	1 mm	0	13 h/day	28 %	39 %	16 km/h
May	1 mm	0	14 h/day	18 %	37 %	16 km/h
June	10 mm	1	14 h/day	18 %	45 %	16 km/h
July	58 mm	10	14 h/day	56 %	59 %	14 km/h
August	88 mm	13	13 h/day	54 %	68 %	12 km/h
September	85 mm	9	12 h/day	32 %	69 %	12 km/h
October	28 mm	3	12 h/day	20 %	55 %	13 km/h
November	17 mm	2	11 h/day	29 %	53 %	12 km/h
December	16 mm	2	10 h/day	35 %	55 %	11 km/h

How Ciudad Obregón 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
Ciudad Obregón	38 °C	11 °C	337 mm	326
Hermosillo · Mexico	39 °C	9.4 °C	241 mm	298
Los Mochis · Mexico	35 °C	13 °C	339 mm	329
Cuauhtémoc · Mexico	29 °C	1.0 °C	426 mm	104
La Paz · Mexico	35 °C	15 °C	225 mm	294
Culiacán · Mexico	36 °C	13 °C	649 mm	351
Chihuahua · Mexico	34 °C	3.8 °C	295 mm	221

Where Ciudad Obregón ranks

Ranking	Position	Value
The warmest places in North America in May	1stof 50	36 °C
The warmest places in North America in October	1stof 50	35 °C
The warmest places in North America year-round	2ndof 50	32 °C
The driest places in North America in May	5thof 50	0.7 mm
The warmest places in North America in June	6thof 50	38 °C
The warmest places in North America in September	6thof 50	36 °C

Planning a trip? See the best time to visit Ciudad Obregón.

QuestionsCommon questions about Ciudad Obregón’s climate

When is the best time to visit Ciudad Obregón?

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

How hot does Ciudad Obregón get?

In June, the warmest month, daily highs average 38 °C. About 245 days a year pass 30 °C. The highest value in the 1991–2020 record is 45 °C.

How cold does it get in winter?

Nights average 11 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Ciudad Obregón?

August, averaging 88 mm over 13 days with rain. The driest month is May with 1 mm. The year as a whole averages 337 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 Ciudad Obregón 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.