Mazatlán has a tropical savanna climate with a long dry season from November through May and a concentrated rainy season from July to September. The city averages 26°C (79°F) year-round, with sea temperatures ranging from 22°C (72°F) in February to 30°C (86°F) in August. Humidity stays between 70% and 80% most months, and the city gets roughly 2,800 hours of sunshine per year. Tropical storms and hurricanes are possible from late August through October, though direct hits are rare; the last major hurricane landfall near Mazatlán was in 1957. best time to visit Mazatlán
Mazatlán Weather in January
January is one of the driest and most comfortable months. Daily highs average 28°C (82°F), lows drop to 13°C (55°F) at night, and sea temperatures hover around 22°C (72°F). You will see roughly 7 hours of sunshine per day and about 8mm of rain for the entire month. Bring a light jacket for evenings along the malecón; it cools off noticeably after sunset.
Mazatlán Weather in February
February continues the dry pattern with highs of 29°C (84°F), lows of 13°C (56°F), and sea temperatures still around 22°C (72°F). Rainfall is negligible at 5mm for the month. This is peak whale-watching season off the coast; humpbacks migrate through these waters from December through March. Sunshine increases to 8 hours per day, and humidity drops to its annual low of around 68%. things to do in Mazatlán
Mazatlán Weather in March
March brings warmer temperatures with highs of 31°C (88°F), lows of 15°C (59°F), and sea temperatures beginning to warm to 23°C (73°F). Rainfall stays minimal at 3mm. This is the driest month of the year. Spring break crowds from the US and northern Mexico begin arriving in the second half of March, filling up Zona Dorada hotels. Sunshine reaches 9 hours per day.
Mazatlán Weather in April
April marks the transition toward summer. Highs reach 33°C (91°F), lows 17°C (63°F), and the sea warms to 24°C (75°F). Rainfall stays low at 5mm, but humidity begins climbing toward 72%. The Easter holiday week (Semana Santa) brings the biggest domestic tourism surge of the year; book hotels at least a month in advance for this period. Mazatlán events and festivals
Mazatlán Weather in May
May is the last fully dry month with highs of 35°C (95°F), lows of 20°C (68°F), and sea temperatures reaching 26°C (79°F). Rainfall ticks up slightly to 8mm. Afternoon humidity feels heavier, and air conditioning becomes essential for comfortable sleep. UV index hits extreme levels (11+); sunscreen is non-negotiable between 11am and 3pm.
Mazatlán Weather in June
June signals the start of the rainy season with 45mm of rainfall spread across roughly 6 rainy days. Highs reach 34°C (93°F), lows 24°C (75°F), and the sea warms to 28°C (82°F). Rain typically arrives in short afternoon downpours that clear within an hour or two. Mornings remain reliably sunny, making early starts the best strategy for beach days. best neighborhoods in Mazatlán
Mazatlán Weather in July
July is the hottest month with highs of 35°C (95°F), lows of 25°C (77°F), and sea temperatures peaking at 30°C (86°F). This is also the start of the heaviest rain period with 180mm of rain across roughly 14 rainy days. Tropical waves from the Caribbean often cross into the Pacific basin this month, bringing multi-day rain events. Humidity sits at 78% to 80%.
Mazatlán Weather in August
August is the wettest month with 215mm of rain over approximately 16 rainy days. Highs remain at 34°C (93°F), lows 24°C (76°F), and the sea stays at 30°C (86°F). This is the peak of the eastern Pacific hurricane season; monitor the US National Hurricane Center forecasts if visiting. Despite the rain, mornings are often clear and hotel rates drop to their lowest of the year. where to stay in Mazatlán
Mazatlán Weather in September
September brings 195mm of rain across about 14 rainy days. Highs dip slightly to 33°C (91°F), lows 24°C (75°F), and sea temperatures hold at 29°C (84°F). Hurricane risk peaks in the first two weeks of September. Mexican Independence Day (September 16) draws domestic tourists regardless of weather. Rain continues as afternoon and evening downpours.
Mazatlán Weather in October
October is the transition month with 85mm of rain over roughly 7 rainy days. Highs ease to 32°C (90°F), lows to 22°C (72°F), and sea temperatures begin cooling to 28°C (83°F). The second half of October usually marks the end of the rainy season, with cooler evenings returning. This is the last month with any significant tropical storm risk. Mazatlán travel tips
Mazatlán Weather in November
November returns to dry conditions with just 18mm of rain. Highs are a pleasant 30°C (86°F), lows drop to 17°C (63°F), and the sea cools to 26°C (79°F). Humidity drops back to 70%. This is one of the best months for outdoor activities and sightseeing; the weather is warm without the summer humidity. Día de los Muertos celebrations on November 1-2 are a cultural highlight.
Mazatlán Weather in December
December is the second-driest month with 10mm of rain. Highs reach 28°C (82°F), lows drop to 14°C (57°F), and the sea sits at 23°C (74°F). Evenings are cool enough for long sleeves, especially if you are walking the malecón after dark. Christmas and New Year weeks see a moderate tourism peak with hotel rates 20% to 30% above normal.
Mazatlán Weather at a Glance
| Month | High (°C/°F) | Low (°C/°F) | Rain (mm) | Sea (°C/°F) | Sun (hrs) |
|---|---|---|---|---|---|
| Jan | 28 / 82 | 13 / 55 | 8 | 22 / 72 | 7 |
| Feb | 29 / 84 | 13 / 56 | 5 | 22 / 72 | 8 |
| Mar | 31 / 88 | 15 / 59 | 3 | 23 / 73 | 9 |
| Apr | 33 / 91 | 17 / 63 | 5 | 24 / 75 | 9 |
| May | 35 / 95 | 20 / 68 | 8 | 26 / 79 | 9 |
| Jun | 34 / 93 | 24 / 75 | 45 | 28 / 82 | 7 |
| Jul | 35 / 95 | 25 / 77 | 180 | 30 / 86 | 6 |
| Aug | 34 / 93 | 24 / 76 | 215 | 30 / 86 | 6 |
| Sep | 33 / 91 | 24 / 75 | 195 | 29 / 84 | 6 |
| Oct | 32 / 90 | 22 / 72 | 85 | 28 / 83 | 7 |
| Nov | 30 / 86 | 17 / 63 | 18 | 26 / 79 | 8 |
| Dec | 28 / 82 | 14 / 57 | 10 | 23 / 74 | 7 |
