Ciudad Obregón weather in May

In May, Ciudad Obregón sees average daytime highs of 36°C and overnight lows near 18°C, with 1 mm of rain across 0.2 wet days and about 13.3 hours of daylight. It is the 5th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 35°C in the first days to 38°C by the end. The sky is clear or mostly clear about 83% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of May to 13 h 36 min by month's end. Set against the rest of the year, May is Ciudad Obregón's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Ciudad Obregón's year-round climate.

Daytime high
36°
5th warmest
Overnight low
18°
7th coldest
Rainfall
1 mm
0.2 wet days
Daylight
13 h 24 min
5:35 AM – 6:57 PM
Cloud cover
18%
2nd clearest
Wind
9 km/h
2nd windiest
Solar energy
8.12 kWh/m²
Travel score
2.4
out of 10

Ciudad Obregón is municipal seat of Cajeme, State of Sonora, Mexico.

Founded
1906

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 35°C in the first days to 38°C by the end.

A typical May day in Ciudad Obregón reaches about 36°C in the afternoon and slips back to 18°C overnight — a 18°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 40°C. Set against its neighbours, May runs about 3°C warmer than April and about 2°C cooler than June.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13516
23517
33517
43517
53617
63617
73617
83617
93617
103617
113618
123618
133618
143618
153618
163618
173618
183718
193719
203719
213719
223719
233719
243719
253719
263720
273720
283720
293820
303820
313821

How May really feels in Ciudad Obregón

Once humidity and wind are folded in, May 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 May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ciudad Obregón weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 10°121.910.58.4
Feb27° / 11°161.8117.9
Mar30° / 12°70.711.86.4
Apr33° / 15°10.212.64.5
May36° / 18°10.213.32.4
Jun39° / 24°91.113.70.9
Jul38° / 27°579.713.60.8
Aug37° / 27°8413.3131.2
Sep37° / 25°829.912.21.7
Oct36° / 20°262.711.32.9
Nov31° / 14°181.910.65.9
Dec26° / 10°172.110.38.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 83% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 6% of May, with mostly cloudy or overcast conditions the remaining 11%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28614
38614
48713
58713
68713
78713
88911
98911
108911
119010
129010
139010
148911
158911
168911
179010
189010
199010
209010
218911
228911
239010
249010
259010
269010
279010
28919
29928
30928
31928

Chance of precipitation in May

Any precipitation

Ciudad Obregón gets around 1 mm of rain over 0.2 wet days in May, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
10
20
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
211
221
231
241
251
261
271
281
291
301
311

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 58% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
17818400
27818400
37718500
47519510
57419610
67419610
77320610
87220710
97121710
107021810
116722920
126623920
1364241020
1463241120
1561251220
1659261230
1757271330
1856281330
1953291440
2052291540
2151301540
2249301650
2347301750
2445301860
2543301970
2641302081
27393021101
28372922111
29362822122
30342723142
31322723153

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 hours at the start of May to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 5:46 AM to 5:29 AM, and sunset from 6:48 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:466:48
213.15:456:48
313.15:446:49
413.15:446:50
513.15:436:50
613.15:426:51
713.25:416:51
813.25:416:52
913.25:406:53
1013.25:396:53
1113.35:386:54
1213.35:386:54
1313.35:376:55
1413.35:376:55
1513.35:366:56
1613.45:356:57
1713.45:356:57
1813.45:346:58
1913.45:346:58
2013.45:336:59
2113.45:337:00
2213.55:327:00
2313.55:327:01
2413.55:327:01
2513.55:317:02
2613.55:317:02
2713.55:307:03
2813.65:307:03
2913.65:307:04
3013.65:307:04
3113.65:297:05

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 8.12 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 8.12 kWh/m² in May across the year — May's 8.12 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.9Intense
28.0Intense
38.0Intense
48.0Intense
58.0Intense
68.0Intense
78.0Intense
88.0Intense
98.1Intense
108.1Intense
118.1Intense
128.1Intense
138.1Intense
148.1Intense
158.1Intense
168.1Intense
178.1Intense
188.1Intense
198.1Intense
208.1Intense
218.1Intense
228.2Intense
238.2Intense
248.2Intense
258.2Intense
268.2Intense
278.2Intense
288.2Intense
298.2Intense
308.2Intense
318.1Intense
Planning a trip in May

Hazard calendar for Ciudad Obregón

In seasonPeak

In May, Ciudad Obregón sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.

Ciudad Obregón sits in the eastern Pacific hurricane zone; the season peaks August–September.

Pacific hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Ciudad Obregón?

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

2.4
Sightseeing
8th-best month of the year
6.1
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Ciudad Obregón. The water and warmth also suit a beach or pool day.

What to pack for Ciudad Obregón in May

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

In May, Ciudad Obregón sees daytime highs around 36°C and nights near 18°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Ciudad Obregón in May

The nearest coast averages about 24°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 44 km away) is warmest in August at about 30°C and coldest in February near 19°C.

It's comfortable for a long swim from Mar 29 to Dec 28 — about 9 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb19Cool
Mar19Cool
Apr21Refreshing
May24Warm
Jun27Warm
Jul29Tropical
Aug30Tropical
Sep30Tropical
Oct28Tropical
Nov24Warm
Dec21Refreshing

UV index in Ciudad Obregón in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ciudad Obregón peaks around July 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateJul 14UV 12Dec 20UV 4
UV index (midday)Level
Jan5Moderate
Feb6High
Mar8Very high
Apr10Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep10Very high
Oct7Very high
Nov6High
Dec4Moderate
Location & terrain

Where is Ciudad Obregón?

Ciudad Obregón sits at 27.5°N, 109.9°W, 38 m above sea level, in Mexico. The nearest listed city is Esperanza, 11 km away.

HermosilloLos Mochis

Topography around Ciudad Obregón

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

Within 3 km, the terrain around Ciudad Obregón has only modest variations in elevation — a maximum elevation change of 22 m around an average of 39 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 599 m; within 80 km, large variations in elevation — a maximum elevation change of 1,109 m.

The land around Ciudad Obregón is covered by artificial surfaces (83%) within 3 km, cropland (51%) and shrubs (26%) within 16 km, and shrubs (44%) within 80 km.

3 km
22 m
16 km
599 m
80 km
1,109 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: Esperanza 11 km · Navojoa 67 km · Huatabampo 79 km · Empalme 101 km · Heroica Guaymas 106 km · San Carlos 121 km · Hermosillo 205 km · Los Mochis 211 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

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 Ciudad Obregón (27.4864°, -109.9408°, elevation 38 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).