Grenada Month-by-Month Weather

Best Time To Visit Grenada, A Month-by-Month Weather Breakdown

Located in the hills above Mt. Parnassus, Mt. Parnassus Inn enjoys a slightly cooler and breezier climate than the beachfront areas due to its higher elevation. While temperatures remain warm year-round, visitors often appreciate the refreshing trade winds and cooler evenings compared to lower-lying coastal communities.

Climate in Grenada: The hottest month is September, with an average high of 86°F, while the coolest month is January, with an average low of 79°F. Skies are typically clearest in January and cloudiest in October. Rainfall is highest in September, averaging approximately 8.2 inches, and lowest in February, averaging about 1.18 inches. Muggy conditions are most common in May and least common in February. For travelers seeking warm, sunny weather and ideal beach conditions, the best time for outdoor activities is generally from late December through early April.

Grenada Average Month-by-Month Weather

January

Average High: 26°C / 79°F Average Low: 18°C / 64°F Rainfall: ~40 mm

January is one of the most comfortable months of the year. Cool trade winds, low humidity, and abundant sunshine make it ideal for sightseeing, hiking, beach visits, and outdoor dining. Evening temperatures in Mt. Parnassus Inn can feel surprisingly refreshing by Caribbean standards.

February

Average High: 26°C / 79°F Average Low: 18°C / 64°F Rainfall: ~30 mm

February is typically the driest month of the year. Clear blue skies, calm seas, and comfortable temperatures create excellent conditions for visitors escaping colder climates. This is one of the most popular months for travelers from Canada, the United Kingdom, and the United States.

March

Average High: 27°C / 81°F Average Low: 19°C / 66°F Rainfall: ~35 mm

March remains warm and dry with plenty of sunshine. Visibility is excellent for photography, snorkeling, and exploring Grenada’s waterfalls and rainforests. Humidity remains relatively low compared to the summer months.

April

Average High: 28°C / 82°F Average Low: 20°C / 68°F Rainfall: ~45 mm

April brings slightly warmer temperatures while maintaining generally dry conditions. Brief afternoon showers occasionally develop but usually pass quickly. The island remains lush and green from the previous months’ rainfall.

May

Average High: 29°C / 84°F Average Low: 21°C / 70°F Rainfall: ~70 mm

Humidity begins to increase during May, although rainfall remains moderate. Visitors can expect warm days, beautiful sunsets, and occasional refreshing showers that help cool the landscape.

June

Average High: 29°C / 84°F Average Low: 22°C / 72°F Rainfall: ~130 mm

June marks the beginning of Grenada’s wetter season. Rainfall typically arrives in short bursts rather than lasting all day. Mornings often remain sunny, with showers developing later in the afternoon or evening.

July

Average High: 29°C / 84°F Average Low: 22°C / 72°F Rainfall: ~180 mm

July is warm, humid, and noticeably greener across the island. Despite increased rainfall, there are still many hours of sunshine most days. Visitors often enjoy lower accommodation rates and fewer crowds compared to peak season.

August

Average High: 30°C / 86°F Average Low: 23°C / 73°F Rainfall: ~200 mm

August is one of the hottest months of the year and coincides with Grenada’s famous Spicemas Carnival celebrations. Expect warm temperatures, tropical humidity, and occasional heavy showers. The rain helps maintain the island’s vibrant vegetation.

September

Average High: 30°C / 86°F Average Low: 23°C / 73°F Rainfall: ~210 mm

September is generally the wettest month. Afternoon thunderstorms become more common, although they are often brief. The surrounding hills and valleys around Mt Parnassus become exceptionally lush during this period.

October

Average High: 29°C / 84°F Average Low: 22°C / 72°F Rainfall: ~190 mm

October continues the wet-season pattern, with periods of sunshine alternating with tropical showers. Visitors are often surprised by how quickly conditions can change from bright sunshine to rainfall and back again.

November

Average High: 28°C / 82°F Average Low: 21°C / 70°F Rainfall: ~150 mm

Rainfall gradually decreases during November as Grenada transitions back toward the dry season. The landscape remains beautifully green, while humidity becomes more comfortable.

December

Average High: 27°C / 81°F Average Low: 20°C / 68°F Rainfall: ~80 mm

December signals the return of the dry season. Cooler evenings, lower humidity, and reliable sunshine make it a favorite month for holiday travelers. The Christmas season brings pleasant weather for beach days, island tours, and outdoor festivities.

Best Time to Visit Mt Parnassus Inn

January Through April: For the Driest Weather

January through April is considered the heart of Grenada’s dry season and is often regarded as the best time for visitors who want reliable sunshine and comfortable outdoor conditions. During these months, rainfall is generally light and short-lived, humidity levels are lower, and the cooling trade winds are at their most refreshing. Guests staying at Mt Parnassus Inn can enjoy clear views across the hills toward the Caribbean Sea, while beachgoers at Grand Anse often experience calm waters and bright blue skies. These conditions are ideal for hiking to waterfalls, exploring St. George’s, taking island tours, sailing, snorkeling, and enjoying outdoor dining without worrying about frequent rain interruptions.

May, June, and November: For Lower Prices and Fewer Tourists

May, June, and November fall between Grenada’s busiest tourist periods, making them excellent months for travelers seeking better value. As visitor numbers decrease, vacation rentals, tours, and some tourism-related services often become more affordable and easier to book. Attractions are generally less crowded, allowing visitors to enjoy a more relaxed experience at beaches, restaurants, waterfalls, and historic sites. Although there is a greater chance of rain compared to the peak dry season, showers are often brief and followed by sunshine. Many travelers find these months offer the perfect balance between savings and enjoyable weather.

August: For Carnival and Cultural Events

August is one of the most exciting months to visit Grenada because it hosts the island’s biggest cultural celebration, Spicemas. The weeks leading up to Carnival are filled with soca music, steelband competitions, calypso shows, fetes, and community events that showcase the spirit of Grenadian culture. Visitors can experience events such as Panorama, Soca Monarch, J’ouvert, Monday Night Mas, and the colorful Pretty Mas parades. The island becomes energized with music, costumes, dancing, and celebrations that continue from morning until late at night. For travelers looking to immerse themselves in local traditions and experience Grenada at its most vibrant, August offers an unforgettable atmosphere.

July Through October: For Lush Scenery and Waterfalls

July through October is Grenada’s green season, when increased rainfall transforms the island into a tropical paradise. Rivers flow more strongly, waterfalls become more dramatic, and the rainforest takes on an intensely vibrant appearance. Popular natural attractions such as Grand Etang National Park, Seven Sisters Falls, Concord Falls, Annandale Falls, and Mt. Carmel Falls are often at their most impressive during this period. The hills surrounding Mt Parnassus become covered in deep shades of green, while fruit trees, flowering plants, and tropical vegetation thrive. Nature lovers, photographers, and eco-tourists often appreciate this season because it reveals Grenada’s landscape at its most spectacular.

November Through March: For a Balance of Sunshine, Comfort, and Green Landscapes

November through March offers what many visitors consider the perfect combination of weather conditions. By November, much of the heavy rainfall has passed, leaving behind lush vegetation, flowing rivers, and healthy tropical forests. At the same time, humidity begins to decrease and sunshine becomes more consistent. The result is a landscape that remains beautifully green while offering comfortable temperatures and plenty of opportunities for outdoor activities. Visitors can enjoy sunny beach days at Grand Anse, hike through rainforests without excessive heat, and experience clear evenings with refreshing breezes. For many travelers, this period provides the best overall mix of scenery, comfort, and dependable weather.

One advantage of staying at Mt Parnassus Inn is that the elevated location often enjoys cooler temperatures and stronger trade winds than the beachfront areas around Grand Anse. Many visitors find they need air conditioning less often in the evenings than at accommodations located directly along the coast.

Grand Etang National Park in Grenada

A visual representation of average monthly rainfall in both millimeters and inches. Based on the monthly rainfall figures previously for Grenada.

Average Monthly Rainfall in Grenada

Rainfall shown in millimeters and inches

Estimated annual rainfall: 1,360 mm / 53.54 inches

Annual Rainfall Summary

Month Rainfall (mm) Rainfall (inches)
January 40 1.57
February 30 1.18
March 35 1.38
April 45 1.77
May 70 2.76
June 130 5.12
July 180 7.09
August 200 7.87
September 210 8.27
October 190 7.48
November 150 5.91
December 80 3.15

Estimated annual rainfall: 1,360 mm (53.54 inches)

The chart clearly illustrates Grenada’s two primary seasons. The dry season typically runs from January through May, while the green or rainy season extends from June through November, with September usually being the wettest month. Despite the higher rainfall totals during the wet season, Grenada still receives substantial sunshine year-round, and rainfall often occurs in short tropical showers rather than all-day rain.Hiking In Grenada to the inner Concord Falls

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Mt Parnassus Inn
Radix Junction, Mt. Parnassus Road,
St George’s, Grenada 00000

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