Temperature
Hot by day, warm at night.
85°Ftypical September high
Typical range
September climate
September in Mazatlan
Mexico · North America
Hot days. Hurricane risk near peak and humid air are the main drawbacks.
Some tradeoffs
Daytime high
85°F
Lows around 77°F
Rain
Rain most days
Sun
4.5 h/day
Air feel
Very humid
Sea temp
87°F
Very warm sea
When to visit
Month-by-month fit
Best
Precipitation
It rains on most days, with a mix of brief and longer spells. About 20 wet days, more than in most months.
67%wet-day frequency
AmountWet-day chance
Sunshine
Sunshine is limited, with cloud often dominating.
4.4 hSeptember sunshine
Heat & humidity by month
Very humid air is a major factor this month.
94%September Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 99° and nights feel near 88°.
CoolComfortableWarmHotSwelteringNight hours
Clear sky
Mostly cloudy skies this month.
33%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
4 mphSeptember Calm
Sea temperature
87°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 88°F, easing to about 84°F in early evening.
Avg temp Typical range
Morning83°F
Feels 93°F
Rain33%
Cloud71%
Humid airVery high
Sun intensityLow
Midday88°F
Feels 98°F
Rain48%
Cloud77%
Humid airVery high
Sun intensityStrong
Late afternoon88°F
Feels 98°F
Rain46%
Cloud76%
Humid airVery high
Sun intensityModerate
Early evening84°F
Feels 95°F
Rain23%
Cloud74%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 78 | 61 | 0.5 | 1 | 6.0 | 74 | 73 |
| Feb | 78 | 61 | 0.6 | 1 | 7.0 | 73 | 72 |
| Mar | 80 | 62 | 0.1 | 0 | 8.0 | 70 | 72 |
| Apr | 83 | 65 | 0.0 | 0 | 8.4 | 68 | 75 |
| May | 86 | 69 | 0.0 | 0 | 10.0 | 68 | 79 |
| Jun | 88 | 75 | 1.4 | 4 | 7.8 | 73 | 82 |
| Jul | 87 | 77 | 6.6 | 17 | 4.3 | 80 | 86 |
| Aug | 86 | 78 | 8.7 | 21 | 4.2 | 85 | 87 |
| Sep | 85 | 77 | 8.5 | 20 | 4.4 | 87 | 87 |
| Oct | 85 | 75 | 2.7 | 7 | 7.6 | 84 | 86 |
| Nov | 82 | 69 | 1.2 | 2 | 7.6 | 79 | 82 |
| Dec | 78 | 63 | 0.4 | 2 | 6.2 | 77 | 76 |
Similar climates
Similar
Similar travel styleNassauBahamasSimilar travel styleCancúnMexicoSimilar travel styleAcapulcoMexicoSimilar travel styleKauaiUnited States
Want a side-by-side climate view? Compare Mazatlan with Nassau.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 11, 2026
Data & methodology