St. Lucia Weather By Month – The Best Time To Visit St. Lucia For Honeymoon

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Disclaimer: We endeavour to provide accurate climate information. However, as the weather around the world becomes more erratic and unpredictable because of the climate catastrophe, The Honeymoon Guide is not responsible for disappointment regarding your trip because of adverse weather.

Many destination websites aim to promote year-round travel to their location, we have noticed a tendency to emphasize the months that may not be optimal. We try to avoid this and provide you with factual information including using weather data, allowing you to make an informed decision.

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The island’s tropical climate ensures warm temperatures year-round, however St. Lucia has a dry season and a rainy season (aka hurricane season).

Although tropical rain can happen at any time, even in the rainy season!

This is what makes St. Lucia so lush after all, so pack a rain jacket, reef-friendly SPF and plenty of insect repellent!

Overall, the best time to visit St. Lucia for a honeymoon is from December to April, during the dry season.

Best Time To Visit St. Lucia By Month

The dry season is in full swing, making it an excellent time for couples seeking warm and sunny weather with less humidity and rain.

January sees low rainfall but you could see some showers around a third of the month but these are usually brief and occur mostly in the early morning or late evening.

The average temperature hovers around a pleasant 26°C (79°F). Daytime highs can reach up to 29°C (84°F), while night time lows are around 23°C (73°F).

Humidity levels are moderate, making the heat more bearable and ideal for outdoor activities and beach relaxation. The risk of hurricanes is minimal in January.

This is a peak travel time for St. Lucia particularly earlier in the month when prices are at their peak, around the Christmas and New Year period.

It’s a good idea to book early for the best availability and prices. If you’re travelling over the Christmas holiday period, maybe opt for an adults-only resort or one with designated adults-only areas.

Overall, January is the best time to visit St. Lucia with lovely weather and low rainfall.

This is the month with the least amount of rain. While half the days might see a light shower, they are usually in short bursts in the afternoon or evening.

Average temperatures remain around 26°C (79°F), with daytime highs reaching up to 29°C (84°F) and night time lows around 23°C (73°F).

The humidity is moderate – making for comfortable conditions for St. Lucia’s considerable array of fun honeymoon activities.

The hurricane risk is very low, as February is well outside the hurricane season.

Valentine’s Day can lead to increased demand, so early reservations for honeymoon hotels and romantic dinners is recommended. 

In summary, February is the best time to visit St. Lucia with ideal weather conditions – warm temperatures, low rainfall, and low humidity await!

The average temperature is around 26°C (79°F), with daytime highs reaching up to 30°C (86°F) and night time lows around 23°C (73°F).

Humidity levels stay moderate, making the heat comfortable for activities like hiking, snorkelling and scuba diving.

The risk of hurricanes remains very low, as March is outside the hurricane season.

Easter can sometimes fall in March, so prices can be high during peak travel times like this.

In summary, March is the best time to visit St. Lucia with fantastic weather with warm temperatures, low rainfall, and moderate humidity.

The average temperature is around 27°C (81°F), with daytime highs reaching up to 30°C (86°F) and night time lows around 24°C (75°F).

Humidity levels remain comfortable meaning you can take part in all the fun things to do in St. Lucia. 

The risk of hurricanes is very low, as April is outside the hurricane season.

Easter often falls in April, and prices are higher during peak travel times like this. Book early for the best availability and prices.

In summary, April is all about warm temperatures, moderate humidity, and low rainfall, making it a wonderful time for a honeymoon in St. Lucia.

Plenty of sunshine should be expected with only occasional showers.

About half the days of the month see some rain. The showers are generally brief and often occur in the late afternoon or evening.

The average temperature gradually increases too to around 28°C (82°F). Daytime highs can reach up to 31°C (88°F), while night time lows are comfortable at around 25°C (77°F).

Humidity levels rise during May, but the sea breezes help to keep it comfortable for all the fun things to do in St. Lucia. 

The risk of hurricanes is still low in May, as the hurricane season officially starts in June.

In summary, May is more of a shoulder month and it’s the best time to visit St. Lucia to explore the island’s natural beauty, with fewer crowds and a reduction in prices.

June sees an increase in rainfall but with a mix of sunny days. An average of 140mm (5.5 inches) spread over approximately 19-20 days is the norm.

This is a noticeable increase from May, making June a wetter month.

The average temperature in June is around 28.6°C (83.5°F), with daytime highs reaching up to 31°C (88°F) and night time lows around 26.5°C (79.6°F).

Humidity levels are rising, averaging around 78%, which can make the heat feel a little more intense.

While June is the start of the hurricane season in the Caribbean, the likelihood of hurricanes hitting St. Lucia in June remains low.

However, the increased rainfall and potential for storms should be taken into consideration when planning.

June is a quieter time to visit. This could be an advantage if you’re seeking fewer crowds and potentially better rates. Expect mixed weather but it’s unlikely to be awful.

In summary, June is the best time to visit St. Lucia if you’re OK with some rain as this month is more unpredictable with a mix of showers and sunny days.

The rain often comes in short, intense bursts, typically followed by sunny periods. The rainfall happens about 75% of the days of the month and the rainfall level is double that of January, for example.

The average temperature increases in July to around 28.6°C (83.5°F), with daytime highs reaching up to 31°C (88°F) and night time lows around 26°C (79°F). 

Humidity levels are high, averaging around 78-79%, which can make the heat feel more intense.

July falls within the hurricane season, which runs from June to November. While the risk of hurricanes is higher compared to other months, St. Lucia is generally not a frequent target.

July is still one of the peak months for travel with the school vacation period so flights can be more expensive.

In summary, July is the best time to visit St. Lucia if you don’t mind some rain and humidity. Pack a rain jacket and plan some spa days if it does happen to rain!

An average of 220mm (8.7 inches) spread over approximately 21-23 days. Rain showers can be heavy but are typically brief, followed by sunny intervals. 

The average temperature in August is warmer in the Caribbean, around 29°C (84°F), with daytime highs reaching up to 31°C (88°F) and night time lows around 26°C (79°F).

The warm sea temperatures make it perfect for swimming and water activities.

Humidity levels are high, averaging around 80%, which can make the temperatures feel hotter.

August falls within the hurricane season (June to November), so there is an increased risk of tropical storms (but with plenty of bouts of sunshine, too). August is a less crowded time to visit.

In summary, August is the best time to visit St. Lucia if you’re OK with more rainfall, unpredictable weather and the risk of hurricanes.

The average temperature in September is around 29°C (84°F), with daytime highs reaching up to 31°C (88°F) and night time lows around 26°C (79°F).

Although sea temperatures remain warm, making it ideal for swimming and other water activities.

Humidity levels are high, averaging around 80%, which can make the heat feel more intense. 

Rain showers are often heavy but short-lived, usually followed by sunny spells.

However, September is historically within the peak of the hurricane season, so there is an increased risk of tropical storms or adverse weather like a hurricane. 

September tends to have fewer tourists and cheaper prices. 

In summary, September is the best time to visit St. Lucia if you’re OK with taking the risk of more rainfall, unpredictable weather and hurricanes.

Showers are often heavy but short, typically followed by periods of sunshine.

Occasional thunderstorms are the norm and a worst case scenario is experiencing a hurricane.

October is one of the peak months of the hurricane season.

The average temperature in October is around 29°C (84°F), with daytime highs reaching up to 31°C (88°F) and night time lows around 26°C (79°F). 

Humidity levels are high, averaging around 80%, which can make the temperatures feel hotter. 

October sees fewer tourists and cheaper prices for couples who are not risk averse!

In summary, October is the worst time to visit St. Lucia due to the risk of honeymoon spoiling rain and a smaller risk of a serious weather event like a hurricane.

November experiences rainfall, with an average of 230mm (9 inches) spread over approximately 19-21 days.

Showers are often heavy but brief, with sunny periods following. Hurricanes are more likely to happen earlier in the month.

The average temperature in November is around 28°C (82°F), with daytime highs reaching up to 30°C (86°F) and night time lows around 25°C (77°F).

Sea temperatures remain warm, ideal for swimming and water activities.

Humidity levels are high, averaging around 78%, which can make the heat feel more intense.

In summary, November is the best time to visit St. Lucia if you’re OK with some rain and the smaller risk of hurricanes.

Rainfall decreases significantly in December, averaging around 100-110mm (4-4.3 inches) with only half the month seeing some showers.

While showers occur (this is the tropics after all!), they are typically brief and less frequent compared to the preceding months.

The average temperature in December is a pleasant 27°C (81°F), with daytime highs reaching up to 29°C (84°F) and night time lows around 24°C (75°F).

Humidity levels begin to drop, averaging around 75%, which makes the climate more comfortable for all the fun St. Lucia honeymoon activities.

December is outside the hurricane season, significantly reducing the risk of tropical storms.

December is a popular month for travel due to the festive season later in the month, so if you’re travelling over the Christmas holidays, early booking is recommended to get the best prices and availability.

In summary, December is the best time to visit St. Lucia although go earlier in the month if you can for the best prices and availability!