Climate and average weather in Mazatlan
In Mazatlan, the summers are oppressive, hot, wet, and mostly cloudy and the winters are warm and mostly clear.
Over the course of the year, the temperature in Mazatlan typically varies from 19°C to 30°C, and is rarely below 17°C or above 31°C. August is the hottest month of the year, while February is the coldest.
Based on the travel score, the best times of year to visit Mazatlan for warm-weather activities are from early January to mid June and late October to late December.
- Hottest
- Aug
- 30°
- Coldest
- Feb
- 19°
- Wettest
- Sep
- 205 mm
- Driest
- May
- 1 mm
- Rain / yr
- 689 mm
- 69 wet days
- Daylight
- 10.6–13.4 h
- shortest–longest
- Elevation
- 1 m
- 23.2°N
- Clearest
- May
- 23% cloud
Mazatlan is municipal seat of Mazatlán, State of Sinaloa, Mexico.
- Founded
- 1531
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Mazatlan weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to mid June.
Temperature through the year
Daily average highs and lows in Mazatlan, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Mazatlan stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 30°C and low of 27°C; the coolest is February, with an average low of 19°C and high of 23°C.
Days typically run about 3°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 23 | 23 | 25 | 27 | 29 | 30 | 30 | 30 | 29 | 27 | 24 |
| Avg low (°C) | 19 | 19 | 20 | 21 | 23 | 26 | 27 | 27 | 27 | 26 | 23 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 23 | 19 |
| Feb | 23 | 19 |
| Mar | 23 | 20 |
| Apr | 25 | 21 |
| May | 27 | 23 |
| Jun | 29 | 26 |
| Jul | 30 | 27 |
| Aug | 30 | 27 |
| Sep | 30 | 27 |
| Oct | 29 | 26 |
| Nov | 27 | 23 |
| Dec | 24 | 20 |
How hot and cold Mazatlan really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the hottest afternoons, once humidity is folded in, Mazatlan feels like about 37°C (around August 4). About 135 days a year carry some heat stress, peaking in August.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 23 | 23 | 23 | 25 | 27 | 32 | 36 | 37 | 36 | 34 | 28 | 24 |
| Air high (°C) | 23 | 23 | 23 | 25 | 27 | 29 | 30 | 30 | 30 | 29 | 27 | 24 |
| Feels-like low (°C) | 19 | 19 | 20 | 21 | 23 | 26 | 27 | 27 | 27 | 26 | 23 | 20 |
| Air low (°C) | 19 | 19 | 20 | 21 | 23 | 26 | 27 | 27 | 27 | 26 | 23 | 20 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 23 | 23 | 19 | 19 |
| Feb | 23 | 23 | 19 | 19 |
| Mar | 23 | 23 | 20 | 20 |
| Apr | 25 | 25 | 21 | 21 |
| May | 27 | 27 | 23 | 23 |
| Jun | 32 | 29 | 26 | 26 |
| Jul | 36 | 30 | 27 | 27 |
| Aug | 37 | 30 | 27 | 27 |
| Sep | 36 | 30 | 27 | 27 |
| Oct | 34 | 29 | 26 | 26 |
| Nov | 28 | 27 | 23 | 23 |
| Dec | 24 | 24 | 20 | 20 |
Average hourly temperature in Mazatlan
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 30°C, and coldest before dawn in February, near 19°C.
Mazatlan weather by month
Every month at a glance. Click a month for its detailed page.
| 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 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Mazatlan gets about 689 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.
The wetter season lasts 3.8 months, from around Jun 23 to Oct 16, peaking in September at about 70% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Apr 15.
September is the wettest month by volume, with 205 mm over about 19 wet days; May is the driest, with 1 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 5 | 4 | 2 | 1 | 1 | 12 | 44 | 62 | 62 | 22 | 7 | 5 |
| Rain days | 2 | 1 | 0 | 0 | 0 | 3 | 14 | 19 | 19 | 7 | 2 | 1 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 5 | 2 |
| Feb | 4 | 1 |
| Mar | 2 | 0 |
| Apr | 1 | 0 |
| May | 1 | 0 |
| Jun | 12 | 3 |
| Jul | 44 | 14 |
| Aug | 62 | 19 |
| Sep | 62 | 19 |
| Oct | 22 | 7 |
| Nov | 7 | 2 |
| Dec | 5 | 1 |
Monthly rainfall
Over a full year, Mazatlan collects about 689 mm of rain across 69 wet days — roughly 57 mm in an average month.
It doesn’t fall evenly. September is the wettest month with 205 mm, while May is the driest at just 1 mm. The three wettest months alone bring about 76% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 15 | 15 | 3 | 1 | 1 | 25 | 132 | 184 | 205 | 65 | 35 | 9 |
| Rain days | 2 | 1 | 0 | 0 | 0 | 3 | 14 | 19 | 19 | 7 | 2 | 1 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 15 | 2 |
| Feb | 15 | 1 |
| Mar | 3 | 0 |
| Apr | 1 | 0 |
| May | 1 | 0 |
| Jun | 25 | 3 |
| Jul | 132 | 14 |
| Aug | 184 | 19 |
| Sep | 205 | 19 |
| Oct | 65 | 7 |
| Nov | 35 | 2 |
| Dec | 9 | 1 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Mazatlan, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around January 16 and lasts for 5.3 months, ending around June 24. The clearest month is May, when the sky is clear, mostly clear, or partly cloudy 85% of the time on average.
The cloudier part of the year begins around June 25 and lasts for 3.3 months, ending around October 2. The cloudiest month is August, when it is overcast or mostly cloudy 69% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 65 | 70 | 73 | 72 | 85 | 78 | 37 | 31 | 42 | 76 | 77 | 65 |
| Cloudier (%) | 35 | 30 | 27 | 28 | 15 | 22 | 63 | 69 | 58 | 24 | 23 | 35 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 65 | 35 |
| Feb | 70 | 30 |
| Mar | 73 | 27 |
| Apr | 72 | 28 |
| May | 85 | 15 |
| Jun | 78 | 22 |
| Jul | 37 | 63 |
| Aug | 31 | 69 |
| Sep | 42 | 58 |
| Oct | 76 | 24 |
| Nov | 77 | 23 |
| Dec | 65 | 35 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 5, brings about 13 h 24 min of light; the shortest, around January 1, only 10 h 36 min — a swing of roughly 2 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.7 | 11.2 | 11.8 | 12.5 | 13.1 | 13.4 | 13.3 | 12.8 | 12.1 | 11.5 | 10.9 | 10.6 |
| Sunrise (AM) | 6:53 | 6:44 | 6:20 | 5:50 | 5:28 | 5:23 | 5:32 | 5:45 | 5:56 | 6:07 | 6:25 | 6:44 |
| Sunset (PM) | 5:36 | 5:56 | 6:10 | 6:22 | 6:35 | 6:48 | 6:50 | 6:34 | 6:04 | 5:34 | 5:17 | 5:19 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 10.7 | 6:53 | 5:36 |
| Feb | 11.2 | 6:44 | 5:56 |
| Mar | 11.8 | 6:20 | 6:10 |
| Apr | 12.5 | 5:50 | 6:22 |
| May | 13.1 | 5:28 | 6:35 |
| Jun | 13.4 | 5:23 | 6:48 |
| Jul | 13.3 | 5:32 | 6:50 |
| Aug | 12.8 | 5:45 | 6:34 |
| Sep | 12.1 | 5:56 | 6:04 |
| Oct | 11.5 | 6:07 | 5:34 |
| Nov | 10.9 | 6:25 | 5:17 |
| Dec | 10.6 | 6:44 | 5:19 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Mazatlan averages about 16 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 25 days.
The sunnier stretch runs 8.6 months, from around Oct 4 to Jun 22. The sunniest month is May, with roughly 23 sunny days (brilliant).
The greyest month is August, down near 4 sunny days — about 84% fewer than the May peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 17 | 16 | 20 | 18 | 24 | 20 | 5 | 4 | 7 | 20 | 20 | 17 |
| Sky | Bright | Bright | Bright | Bright | Brilliant | Bright | Gloomy | Gloomy | Gloomy | Bright | Bright | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 17 | Bright |
| Feb | 16 | Bright |
| Mar | 20 | Bright |
| Apr | 18 | Bright |
| May | 24 | Brilliant |
| Jun | 20 | Bright |
| Jul | 5 | Gloomy |
| Aug | 4 | Gloomy |
| Sep | 7 | Gloomy |
| Oct | 20 | Bright |
| Nov | 20 | Bright |
| Dec | 17 | Bright |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
Mazatlan is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.
The stickiest month is April, when it feels muggy, oppressive or miserable about 73% of the time. Even in February, the mildest month, the air is dry or comfortable only 13% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Comfortable (%) | 9 | 12 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 |
| Humid (%) | 49 | 53 | 51 | 26 | 2 | 0 | 0 | 0 | 0 | 0 | 5 | 30 |
| Muggy (%) | 39 | 34 | 42 | 69 | 47 | 6 | 0 | 0 | 0 | 5 | 34 | 52 |
| Oppressive (%) | 0 | 0 | 0 | 5 | 50 | 64 | 17 | 2 | 6 | 33 | 53 | 9 |
| Miserable (%) | 0 | 0 | 0 | 0 | 1 | 29 | 83 | 98 | 94 | 62 | 7 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 2 | 9 | 49 | 39 | 0 | 0 |
| Feb | 1 | 12 | 53 | 34 | 0 | 0 |
| Mar | 1 | 6 | 51 | 42 | 0 | 0 |
| Apr | 0 | 1 | 26 | 69 | 5 | 0 |
| May | 0 | 0 | 2 | 47 | 50 | 1 |
| Jun | 0 | 0 | 0 | 6 | 64 | 29 |
| Jul | 0 | 0 | 0 | 0 | 17 | 83 |
| Aug | 0 | 0 | 0 | 0 | 2 | 98 |
| Sep | 0 | 0 | 0 | 0 | 6 | 94 |
| Oct | 0 | 0 | 0 | 5 | 33 | 62 |
| Nov | 0 | 1 | 5 | 34 | 53 | 7 |
| Dec | 1 | 7 | 30 | 52 | 9 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Wind in Mazatlan is steady company: average speeds sit near 10 km/h — calm — in every month of the year, with no meaningful windy or calm season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 10 | 11 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 11 | calm |
| Feb | 11 | calm |
| Mar | 11 | calm |
| Apr | 11 | calm |
| May | 11 | calm |
| Jun | 10 | calm |
| Jul | 9 | calm |
| Aug | 9 | calm |
| Sep | 9 | calm |
| Oct | 9 | calm |
| Nov | 10 | calm |
| Dec | 11 | calm |
Hazard calendar for Mazatlan
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
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.
Best time to visit Mazatlan
To characterize how pleasant the weather is in Mazatlan throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around early June, Mazatlan is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Mazatlan for general outdoor tourist activities is from late October to mid June, with a peak score in the last week of March.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 8.6 | 8.7 | 9.0 | 9.0 | 8.8 | 7.1 | 4.6 | 3.9 | 4.1 | 6.3 | 8.2 | 8.6 |
| Rating | ideal | ideal | ideal | ideal | ideal | good | fair | fair | fair | good | ideal | ideal |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 8.6 | ideal |
| Feb | 8.7 | ideal |
| Mar | 9.0 | ideal |
| Apr | 9.0 | ideal |
| May | 8.8 | ideal |
| Jun | 7.1 | good |
| Jul | 4.6 | fair |
| Aug | 3.9 | fair |
| Sep | 4.1 | fair |
| Oct | 6.3 | good |
| Nov | 8.2 | ideal |
| Dec | 8.6 | ideal |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Mazatlan for hot-weather activities run from mid March to late June and again from early October to late December, with a peak score in the first week of June.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Mazatlan, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
For a warm-season trip around August (highs near 30°C), the essentials are light clothes, rain gear and sun protection. In the cold season around February (highs near 23°C), pack light clothes and sun protection.
In August, Mazatlan sees daytime highs around 30°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.
Sea temperature near Mazatlan
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
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 (midday) in Mazatlan by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
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 |
Average hourly UV index in Mazatlan
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in May the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 5.5 | 6.5 | 7.5 | 8 | 8.5 | 8.5 | 8.5 | 8 | 7.5 | 6.5 | 5.5 | 5 |
| UV ≥ 6 (h/day) | 0 | 4 | 5.5 | 6 | 6.5 | 6.5 | 6 | 6 | 5.5 | 4 | 1 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 5.5 | 0 |
| Feb | 6.5 | 4 |
| Mar | 7.5 | 5.5 |
| Apr | 8 | 6 |
| May | 8.5 | 6.5 |
| Jun | 8.5 | 6.5 |
| Jul | 8.5 | 6 |
| Aug | 8 | 6 |
| Sep | 7.5 | 5.5 |
| Oct | 6.5 | 4 |
| Nov | 5.5 | 1 |
| Dec | 5 | 0 |
Growing season
Mazatlan is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Mazatlan banks about 5,443 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 349 | 314 | 357 | 383 | 463 | 516 | 569 | 571 | 545 | 543 | 450 | 384 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 349 |
| Feb | 314 |
| Mar | 357 |
| Apr | 383 |
| May | 463 |
| Jun | 516 |
| Jul | 569 |
| Aug | 571 |
| Sep | 545 |
| Oct | 543 |
| Nov | 450 |
| Dec | 384 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Mazatlan receives about 5.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.2 and 7.7 kWh/m².
The brighter stretch of the year lasts 5.2 months, from around Feb 22 to Jul 29. The brightest month is May, averaging about 7.7 kWh/m² (intense).
The dimmest month is December, down near 4.3 kWh/m² — roughly 44% less than the May peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.5 | 5.4 | 6.6 | 7.4 | 7.7 | 6.9 | 5.9 | 5.4 | 4.9 | 5.2 | 4.7 | 4.3 |
| Level | Bright | Bright | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 4.5 | Bright |
| Feb | 5.4 | Bright |
| Mar | 6.6 | Intense |
| Apr | 7.4 | Intense |
| May | 7.7 | Intense |
| Jun | 6.9 | Intense |
| Jul | 5.9 | Bright |
| Aug | 5.4 | Bright |
| Sep | 4.9 | Bright |
| Oct | 5.2 | Bright |
| Nov | 4.7 | Bright |
| Dec | 4.3 | Bright |
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.
What Mazatlan looks like
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. 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).