Acapulco has a tropical wet and dry climate (Koppen Aw) with consistently warm temperatures year-round and a sharp division between a dry winter and a wet summer. The city sits on Mexico’s Pacific coast at 16°51’N latitude, which means the sun is intense every month, daytime highs stay between 31-32°C (88-90°F) and nighttime lows rarely drop below 23°C (73°F). Sea temperatures hover between 27-30°C (81-86°F), making the water swimmable 365 days a year. The rainy season runs from June through October, when afternoon downpours and tropical storms can dump over 300mm of rain in a single month. Acapulco’s location in a sheltered bay also protects it from the strongest Pacific hurricane impacts, though storms do occasionally make landfall. For an overview of weather, seasons, and hotels, see our Acapulco travel guide. See the best time to visit Acapulco guide.
Acapulco Weather by Month: Monthly Breakdown
January
January brings the coolest weather of the year, though “cool” is relative in Acapulco, daytime highs hit 31°C (88°F) and nighttime lows drop to 23°C (73°F). Rainfall is negligible at 11mm across just one rainy day. With 8 hours of daily sunshine and sea temperatures at 28°C (82°F), January is one of the best months for beach days and outdoor activities. See the things to do in Acapulco guide. See the Acapulco events and festivals guide.
February
February is the driest month with only 5mm of rain and essentially zero rainy days. Temperatures hold steady at 31°C (88°F) high and 23°C (73°F) low. The 8 hours of daily sun and calm seas make this a prime month for water sports, snorkeling trips to La Roqueta Island, and sunset watching from Pie de la Cuesta. See the Acapulco neighborhoods guide. See the where to stay in Acapulco guide.
March
March continues the dry streak with barely 3mm of rain. Highs reach 31°C (88°F) and lows 23°C (73°F). Humidity stays manageable at around 65%. This is peak spring break season, hotel prices rise and beaches fill up, especially around Costera Miguel Aleman. Sea temperatures dip slightly to 27°C (81°F), still perfectly warm for swimming. See the Acapulco travel tips guide.
April
April sees temperatures starting to climb, with highs of 31°C (88°F) and lows of 24°C (75°F). Rainfall remains minimal at 3mm, but humidity begins to increase noticeably. With 7 hours of daily sun, April is still firmly in the dry season window. This is the last reliably dry month before the rains arrive, Tianguis Turistico, Mexico’s largest tourism trade fair, often takes place in April for this reason.
May
May is the hottest month, with average highs of 32°C (90°F) and lows of 25°C (77°F). The rainy season begins to stir, 28mm of precipitation falls across about 3 days, usually as brief afternoon showers. Sea temperatures warm to 29°C (84°F). The humidity becomes noticeable at 70% relative humidity. Sun hours drop to 6 per day. Early May can still deliver excellent beach weather, but by late May afternoon storms become more frequent.
June
June is when the rainy season arrives in force. Rainfall jumps to 277mm across 13 rainy days. Temperatures remain hot at 32°C (90°F) high and 25°C (77°F) low, combined with high humidity around 75%. Mornings are typically sunny and clear, with heavy thunderstorms rolling in during the late afternoon. Sea temperatures reach 30°C (86°F). Hurricane season officially begins June 1 on the Pacific coast.
July
July brings 214mm of rainfall across 13 rainy days. Highs stay at 32°C (90°F) and lows at 25°C (77°F). The pattern of sunny mornings and rainy afternoons continues. Sea temperatures remain at a bathwater-warm 30°C (86°F). Despite the rain, July is part of Mexico’s domestic summer holiday period, Mexican families flock to Acapulco, and hotel occupancy stays high. Sun hours are 6 per day.
August
August delivers 261mm of rain over 14 days, making it the second-wettest month. Highs are 32°C (90°F) and lows 25°C (77°F). Humidity peaks at 76%. The sea is at its warmest at 30°C (86°F). Afternoon storms can be intense with lightning over the bay. Tropical storm risk increases, Hurricane Otis intensified to Category 5 in just 12 hours before striking Acapulco in October 2023, demonstrating how quickly Pacific storms can develop.
September
September is the wettest month by a significant margin, with 337mm of rain across 15 rainy days, more than ten times January’s rainfall. Temperatures dip slightly to 31°C (88°F) high and 24°C (75°F) low. Humidity reaches its annual maximum at 78%. This is the peak of hurricane season on Mexico’s Pacific coast. Sun hours drop to just 5 per day. Hotel prices are at their lowest, and you’ll find few international tourists. If you visit in September, plan activities for mornings and keep afternoons flexible.
October
October marks the transition out of the rainy season. Rainfall drops significantly to 138mm across 8 rainy days. Highs of 31°C (88°F) and lows of 24°C (75°F) return. By late October the afternoon storm pattern begins to break, and you’ll get more full-sun days. Sea temperatures stay warm at 29°C (84°F). The second half of October can deliver excellent weather at lower prices than the winter high season.
November
November brings the dry season back with just 25mm of rain over 2 days. Highs are 31°C (88°F) and lows 24°C (75°F). With 7 hours of daily sunshine and humidity dropping back to 72%, conditions feel noticeably more comfortable than the summer months. The sea remains warm at 29°C (84°F). Tourist arrivals begin to increase, particularly around the International Film Festival and Dia de Muertos.
December
December brings dry, sunny weather with only 9mm of rain across 1 day. Highs are 31°C (88°F) and lows 23°C (73°F). With 7 hours of daily sun and sea temperatures at 28°C (82°F), December is prime beach season. The Christmas to New Year period is the busiest and most expensive time to visit, book hotels 3-4 months in advance for this window.
Acapulco Weather by Month: Comparison Table
| Month | High (°C/°F) | Low (°C/°F) | Rain (mm) | Rain Days | Sun (hrs) | Sea (°C/°F) |
|---|---|---|---|---|---|---|
| Jan | 31 / 88 | 23 / 73 | 11 | 1 | 8 | 28 / 82 |
| Feb | 31 / 88 | 23 / 73 | 5 | 1 | 8 | 28 / 82 |
| Mar | 31 / 88 | 23 / 73 | 3 | 0 | 8 | 27 / 81 |
| Apr | 31 / 88 | 24 / 75 | 3 | 0 | 7 | 28 / 82 |
| May | 32 / 90 | 25 / 77 | 28 | 3 | 6 | 29 / 84 |
| Jun | 32 / 90 | 25 / 77 | 277 | 13 | 6 | 30 / 86 |
| Jul | 32 / 90 | 25 / 77 | 214 | 13 | 6 | 30 / 86 |
| Aug | 32 / 90 | 25 / 77 | 261 | 14 | 6 | 30 / 86 |
| Sep | 31 / 88 | 24 / 75 | 337 | 15 | 5 | 29 / 84 |
| Oct | 31 / 88 | 24 / 75 | 138 | 8 | 6 | 29 / 84 |
| Nov | 31 / 88 | 24 / 75 | 25 | 2 | 7 | 29 / 84 |
| Dec | 31 / 88 | 23 / 73 | 9 | 1 | 7 | 28 / 82 |
