Mazatlan in Summer
In summer (June, July and August), Mazatlan sees average daytime highs around 29°C and overnight lows near 27°C, with 340 mm of rain over about 36 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 28°C in early June to 30°C by late August. The sky is clear or mostly clear about 31% of the time across summer, and the air most often feels miserable.
Summer is Mazatlan's weakest season of the year to visit on our travel score. For the whole year in context, see Mazatlan's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 27°C
- Rainfall
- 340 mm
- 36 wet days
- Avg wind
- 10 km/h
- Travel score
- 5.2
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Mazatlan in Summer
Over the season highs climb from about 28°C in early June to 30°C by late August.
A typical summer day in Mazatlan reaches about 29°C and drops to 27°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Mazatlan
Once humidity and wind are folded in, summer brings about 78 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mazatlan weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 23° / 19° | 15 | 1.5 | 10.7 | 8.6 |
| Feb | 23° / 19° | 15 | 1.2 | 11.2 | 8.7 |
| Mar | 23° / 20° | 3 | 0.4 | 11.8 | 9.0 |
| Apr | 25° / 21° | 1 | 0.2 | 12.5 | 9.0 |
| May | 27° / 23° | 1 | 0.2 | 13.1 | 8.8 |
| Jun | 29° / 26° | 25 | 3.1 | 13.4 | 7.2 |
| Jul | 30° / 27° | 132 | 14.3 | 13.3 | 4.5 |
| Aug | 30° / 27° | 184 | 18.8 | 12.8 | 3.9 |
| Sep | 30° / 27° | 205 | 19 | 12.1 | 4.0 |
| Oct | 29° / 26° | 65 | 6.7 | 11.5 | 6.3 |
| Nov | 27° / 23° | 35 | 2 | 10.9 | 8.3 |
| Dec | 24° / 20° | 9 | 1.4 | 10.6 | 8.6 |
Cloud cover in Summer
The sky is clear or mostly clear about 31% of the time across summer.
Chance of precipitation in Summer
Mazatlan gets around 340 mm of rain over 36 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 18 min in early June to 12 h 30 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.1 kWh/m².
Hazard calendar for Mazatlan
In summer, Mazatlan overlaps its pacific hurricane and monsoon 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.
Is summer a good time to visit Mazatlan?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Mazatlan for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Mazatlan in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Mazatlan sees daytime highs around 29°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 36 days see rain.
Sea temperature near Mazatlan in Summer
The nearest coast averages about 29°C across summer — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 23 | 23 | 22 | 23 | 26 | 28 | 29 | 30 | 30 | 30 | 27 | 25 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 23 | Refreshing |
| Feb | 23 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 23 | Refreshing |
| May | 26 | Warm |
| Jun | 28 | Warm |
| Jul | 29 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 30 | Tropical |
| Nov | 27 | Warm |
| Dec | 25 | Warm |
UV index in Mazatlan in Summer
Clear-sky midday UV across summer averages 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 8 | 10 | 12 | 12 | 12 | 12 | 11 | 11 | 8 | 6 | 6 |
| Level | High | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 8 | Very high |
| Mar | 10 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 6 | High |
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.
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.
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
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.