The best times to visit Grand Riviere for ideal weather are
March 5th to March 25th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Grand Riviere Travel Guide
Other Grand Riviere Travel Info
Weather in Grand Riviere
Temperature
Average temperatures in Grand Riviere vary very little. Considering humidity, temperatures feel hot all year with a chance of rain throughout most of the year. The area is far less temperate than some — in the bottom 1 percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Grand Riviere, the hottest months are June, July, and then August. See average monthly temperatures below. The warmest time of year is generally mid August where highs are regularly around 90.5°F (32.5°C) with temperatures rarely dropping below 76.1°F (24.5°C) at night.
Grand Riviere Temperatures (Fahrenheit)
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Grand Riviere Temperatures (Celsius)
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“Feels-Like” Temperatures
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Grand Riviere Perceived Temperature (F)
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Grand Riviere Perceived Temperature (C)
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Average Grand Riviere Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
Show Fahrenheit
| Month | Avg. High (°F) | Avg. Mean (°F) | Avg. Low (°F) |
|---|---|---|---|
| Jan | 84.6 | 77.4 | 71.3 |
| Feb | 84.8 | 77.7 | 71.3 |
| Mar | 85.6 | 78.2 | 71.9 |
| Apr | 86.7 | 79.1 | 72.6 |
| May | 88 | 81 | 75.2 |
| Jun | 88.4 | 81.9 | 76.2 |
| Jul | 88.2 | 81.8 | 76.1 |
| Aug | 88.9 | 81.5 | 75 |
| Sep | 89.9 | 80.9 | 73.7 |
| Oct | 89.2 | 80.2 | 73.5 |
| Nov | 87.5 | 78.8 | 72 |
| Dec | 85.7 | 78 | 71 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | 29.2 | 25.2 | 21.8 |
| Feb | 29.3 | 25.4 | 21.8 |
| Mar | 29.8 | 25.7 | 22.2 |
| Apr | 30.4 | 26.2 | 22.6 |
| May | 31.1 | 27.2 | 24 |
| Jun | 31.3 | 27.7 | 24.6 |
| Jul | 31.2 | 27.7 | 24.5 |
| Aug | 31.6 | 27.5 | 23.9 |
| Sep | 32.2 | 27.2 | 23.2 |
| Oct | 31.8 | 26.8 | 23.1 |
| Nov | 30.8 | 26 | 22.2 |
| Dec | 29.8 | 25.6 | 21.7 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Grand Riviere are March, May, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid March. For example, on the week of March 12th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in mid July with an average of 5 days of significant precipitation the week of July 16th.
When can you find snow in Grand Riviere? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Grand Riviere.
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Snow on the Ground
The graph below shows the average snow on the ground in Grand Riviere (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 44% | 0 | 4.4 |
| Feb | 33% | 0 | 3 |
| Mar | 24% | 0 | 3.2 |
| Apr | 35% | 0 | 5.9 |
| May | 30% | 0 | 5.7 |
| Jun | 37% | 0 | 5.4 |
| Jul | 47% | 0 | 7.4 |
| Aug | 51% | 0 | 10.1 |
| Sep | 41% | 0 | 8.3 |
| Oct | 45% | 0 | 9.5 |
| Nov | 43% | 0 | 7.8 |
| Dec | 41% | 0 | 5.5 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 44 | 0 | 11.2 |
| Feb | 33 | 0 | 7.6 |
| Mar | 24 | 0 | 8.1 |
| Apr | 35 | 0 | 15 |
| May | 30 | 0 | 14.5 |
| Jun | 37 | 0 | 13.7 |
| Jul | 47 | 0 | 18.8 |
| Aug | 51 | 0 | 25.7 |
| Sep | 41 | 0 | 21.1 |
| Oct | 45 | 0 | 24.1 |
| Nov | 43 | 0 | 19.8 |
| Dec | 41 | 0 | 14 |
Humidity and Wind
Grand Riviere has some very humid months, and above average humidity throughout the year. The least humid month is March (67.9% relative humidity), and the most humid month is October (75.7%).
Wind in Grand Riviere is usually moderate. The windiest month is June, followed by February and July. June’s average wind speed of around 9.7 knots (11.1 MPH or 17.9 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late June where average top sustained speeds reach 16.7 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Grand Riviere.
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Wind
The graph below shows wind speed (max and average) in knots.
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Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
| Month | Avg. Wind | Avg. Wind Feel | Sustained High Wind | High Wind Feel |
| Jan | 9.1 | Gentle breeze | 15.6 | Significant breeze |
| Feb | 9.5 | Gentle breeze | 16.1 | Significant breeze |
| Mar | 8.5 | Gentle breeze | 14.9 | Significant breeze |
| Apr | 8.5 | Gentle breeze | 14.8 | Significant breeze |
| May | 8.3 | Gentle breeze | 14.5 | Significant breeze |
| Jun | 9.7 | Gentle breeze | 15.9 | Significant breeze |
| Jul | 9.4 | Gentle breeze | 15.8 | Significant breeze |
| Aug | 7.5 | Gentle breeze | 14 | Significant breeze |
| Sep | 5.7 | Light breeze | 12.1 | Significant breeze |
| Oct | 6.2 | Light breeze | 13 | Significant breeze |
| Nov | 6.9 | Light breeze | 13.5 | Significant breeze |
| Dec | 8 | Gentle breeze | 14.4 | Significant breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 70.6% |
| Feb | 68.9% |
| Mar | 67.9% |
| Apr | 69.4% |
| May | 70.1% |
| Jun | 70.3% |
| Jul | 72.1% |
| Aug | 74% |
| Sep | 75.2% |
| Oct | 75.7% |
| Nov | 75.7% |
| Dec | 73.4% |
Is it Safe to Travel to Grand Riviere?
Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for Martinique; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 26, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in Grand Riviere, Martinique is February, followed by July and November. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Grand Riviere in September. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall Grand Riviere Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 88.5°F (31.4°C) and 84.9°F (29.4°C) with warmer temperatures in the later months. Rain is somewhat common with 7 to 10 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 11 to 16 days of precipitation per month. June – August is the second busiest season for tourism in Grand Riviere, so lodging and other accommodations may cost slightly more.
Fall (September through November)
Fall daily highs range from 90.5°F (32.5°C) and 86.2°F (30.1°C), which will feel very nice given the humidity and wind. It rains or snows a great amount: 12 to 14 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is perfect this time of year in Grand Riviere to be enjoyable for warm weather travelers. The average high during this season is between 86.4°F (30.2°C) and 84.4°F (29.1°C). On average, it rains or snows a great amount: 9 to 14 times per month. These times of year are the busiest with tourists.
Best Times to Travel› Martinique › Grand Riviere, Martinique