Union Island Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Union Island, Saint Vincent & Grenadines in September.

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Clifton

Thinking about venturing to Union Island, Saint Vincent & Grenadines this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Union Island in September

Union Island, Saint Vincent & Grenadines is a region in Saint Vincent & Grenadines. September in Union Island generally has warm temperatures, with high precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 30°C (86°F) and nighttime temperatures around 27°C (81°F) in Clifton. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

For a closer look at conditions across Union Island, Saint Vincent & Grenadines, refer to the map below.

Precipitation

September is a rainy month with an average rainfall of around 153 mm (6 in) in Clifton.

Average sunshine

Most destinations offer generous amounts of sunshine this September. For example, Clifton gets approximately 240 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Union Island by month

Pick a month to see the average temperature, rainfall and sunshine in Union Island — and find the best time to visit. (based on Clifton)

January28°C (82°F) February28°C (82°F) March28°C (82°F) April28°C (82°F) May29°C (84°F) June29°C (84°F) This monthJuly29°C (84°F) August29°C (84°F) September30°C (86°F) October30°C (86°F) November29°C (84°F) December28°C (82°F)
Best Time to Visit Union Island →

Best Places to Visit in Union Island in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Union Island.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Union Island

What is the weather like in September for the most popular destinonation in Union Island, Saint Vincent & Grenadines?

Clifton

In September Clifton generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 27°C (81°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
27°C (81°F)
26°C (79°F)
Monthly sun hours
248 hours
240 hours
248 hours
Monthly rainfall
155 mm (6.1 in)
153 mm (6 in)
166 mm (6.5 in)
Monthly rainy days
19 days
19 days
17 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Clifton →

Is your destination not in the list? Have a look at all destinations in Union Island, in Saint Vincent & Grenadines.

Union Island weather in September: frequently asked questions

What is the weather like in Union Island, Saint Vincent & Grenadines in September?

In September, Union Island, Saint Vincent & Grenadines generally has unpleasant weather conditions. Clifton sees daytime temperatures near 30°C (86°F), with nights cooling to roughly 27°C (81°F).

What is the average temperature in Union Island, Saint Vincent & Grenadines in September?

Daytime temperatures in Clifton peak at roughly 30°C (86°F) in September, dropping to about 27°C (81°F) overnight.

Does Union Island, Saint Vincent & Grenadines get a lot of rain in September?

Yes, September tends to be a wetter month in Union Island, Saint Vincent & Grenadines. Average rainfall in Clifton sits around 153 mm (6 in).

Is September a Good Time to Visit Union Island, Saint Vincent & Grenadines?

Given the typically tolerable weather conditions in Clifton, September may not be the ideal time to visit Union Island, Saint Vincent & Grenadines.

Generally speaking, the best visiting conditions can be found in January, February, March, April, May and December offering mostly perfect weather in Clifton. On the other hand, the weather in September and October tend to be unpleasant.

Interested in more climate information?

We have much more information about the climate in Union Island.

Weather and climate has detailed information for every country in the world. Are you going to Saint Vincent & Grenadines? Get detailed historical weather averages for many cities in Saint Vincent & Grenadines.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.