Mazatlan weather in May

In May, Mazatlan sees average daytime highs of 27°C and overnight lows near 23°C, with 1 mm of rain across 0.2 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 27°C by the end. The sky is clear or mostly clear about 76% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of May to 13 h 18 min by month's end. Set against the rest of the year, May is Mazatlan's 1st-clearest and 5th-windiest month. For the whole year in context, see Mazatlan's year-round climate.

Daytime high
27°
7th warmest
Overnight low
23°
7th coldest
Rainfall
1 mm
0.2 wet days
Daylight
13 h 06 min
5:28 AM – 6:35 PM
Cloud cover
23%
1st clearest
Wind
11 km/h
5th windiest
Solar energy
7.73 kWh/m²
Travel score
8.8
out of 10

Mazatlan is municipal seat of Mazatlán, State of Sinaloa, Mexico.

Founded
1531

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 26°C in the first days to 27°C by the end.

A typical May day in Mazatlan reaches about 27°C in the afternoon and slips back to 23°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, May runs about 2°C warmer than April and about 2°C cooler than June.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12622
22622
32622
42622
52622
62622
72622
82623
92623
102623
112623
122623
132623
142723
152723
162723
172723
182724
192724
202724
212724
222724
232724
242724
252724
262724
272724
282724
292725
302725
312725

How May really feels in Mazatlan

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Mazatlan weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 19°151.510.78.6
Feb23° / 19°151.211.28.7
Mar23° / 20°30.411.89.0
Apr25° / 21°10.212.59.0
May27° / 23°10.213.18.8
Jun29° / 26°253.113.47.2
Jul30° / 27°13214.313.34.5
Aug30° / 27°18418.812.83.9
Sep30° / 27°2051912.14.0
Oct29° / 26°656.711.56.3
Nov27° / 23°35210.98.3
Dec24° / 20°91.410.68.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in May, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of May, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
37921
48020
58119
68119
78218
88317
98317
108317
118317
128416
138515
148515
158416
168515
178515
188515
198614
208614
218614
228713
238713
248911
258911
268911
279010
289010
29919
30919
31928

Chance of precipitation in May

Any precipitation

Mazatlan 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 (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
190
200
210
220
230
240
250
260
270
280
290
301
311

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1775180
2773200
3672220
4670240
5569260
6467290
7465310
8364330
9361360
10260380
11258400
12255430
13253450
14152470
15149490
16147520
17145540
18143560
19141580
20139600
21137620
22035641
23034651
24032671
25030691
26029692
27027712
28025732
29023743
30022744
31020764

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 48 min at the start of May to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over May. Sunrise moves from 5:37 AM to 5:24 AM, and sunset from 6:28 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:376:28
212.95:376:29
312.95:366:29
412.95:356:30
512.95:356:30
612.95:346:31
713.05:336:31
813.05:336:32
913.05:326:32
1013.05:326:33
1113.05:316:33
1213.05:306:33
1313.15:306:34
1413.15:296:34
1513.15:296:35
1613.15:286:35
1713.15:286:36
1813.15:286:36
1913.25:276:37
2013.25:276:37
2113.25:266:38
2213.25:266:38
2313.25:266:39
2413.25:256:39
2513.25:256:40
2613.35:256:40
2713.35:256:41
2813.35:246:41
2913.35:246:41
3013.35:246:42
3113.35:246:42

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.73 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 7.73 kWh/m² in May across the year — May's 7.73 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.7Intense
27.7Intense
37.7Intense
47.7Intense
57.7Intense
67.7Intense
77.7Intense
87.8Intense
97.8Intense
107.8Intense
117.8Intense
127.8Intense
137.8Intense
147.8Intense
157.8Intense
167.8Intense
177.7Intense
187.7Intense
197.7Intense
207.7Intense
217.7Intense
227.7Intense
237.7Intense
247.7Intense
257.6Intense
267.6Intense
277.6Intense
287.6Intense
297.5Intense
307.5Intense
317.5Intense
Planning a trip in May

Hazard calendar for Mazatlan

In seasonPeak

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

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

Mazatlan's monsoon runs July–September, when most of the year's rain falls.

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

Is May a good time to visit Mazatlan?

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

8.8
Sightseeing
3rd-best month of the year
8.6
Beach & pool
1st-best month of the year

May is one of the better times to visit Mazatlan for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Mazatlan in May

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

In May, Mazatlan sees daytime highs around 27°C and nights near 23°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Mazatlan in May

The nearest coast averages about 26°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 30°C and coldest in March near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar22Refreshing
Apr23Refreshing
May26Warm
Jun28Warm
Jul29Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov27Warm
Dec25Warm

UV index in Mazatlan in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mazatlan peaks around May 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighMay 16UV 12Dec 20UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct8Very high
Nov6High
Dec6High
Location & terrain

Where is Mazatlan?

Mazatlan sits at 23.2°N, 106.4°W, 1 m above sea level, in Mexico. The nearest listed city is El Rosario, 63 km away.

Costa RicaTuxpan

Topography around Mazatlan

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

Within 3 km, the terrain around Mazatlan has only modest variations in elevation — a maximum elevation change of 80 m around an average of 5 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 302 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,594 m.

The land around Mazatlan is covered by artificial surfaces (55%) and water (36%) within 3 km, water (52%) and trees (23%) within 16 km, and trees (51%) and water (36%) within 80 km.

3 km
80 m
16 km
302 m
80 km
2,594 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: El Rosario 63 km · Escuinapa de Hidalgo 78 km · La Cruz 92 km · Pueblo Nuevo 109 km · El Salto 124 km · Acaponeta 136 km · Costa Rica 181 km · Tuxpan 183 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 Mazatlan (23.2216°, -106.4189°, elevation 1 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).