Your trips
Organise your trips easily with tabs
London
St Martin
Any date
+ Search
background

St Martin in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in St Martin in May will be like? Take a look at our weather guide for St Martin, based on historical data.
Check flight prices to St Martin on Avionero:
May

Weather in St Martin in May 2025

OK Weather
Warm
🌧️
Rainy
If you plan to visit St Martin in May, the weather is typically alright, with an average high temperature of +26°C during the day and approximately 2 sunny days. Expect some rainy, though, as there are typically 22 rainy days in the month and around 66 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+26°C
Avg. max. temperature
+20°C
Min.
+30°C
Max.
66 mm
Total precipitation
81%
Avg. humidity
5 m/s
Avg. wind
2 ☀️
Sunny Days
7 ⛅️
Cloudy
22 🌦
Rainy
Our opinion: St Martin has OK weather in May.
Avionero – A better way to search for flights:
Cheapest prices on the market!
Check all your dates and date combinations in a single search!
Want inspiration, set your dates and find the cheapest destinations!
Saves your searches in the browser so you can easily return to them!

Average temperature in St Martin in May

Here are the expected maximum, average and minimum temperatures in St Martin for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +26°C during the day to a minimum of +23°C during the night, the temperature in May averages around +25°C.

The average maximum temperature goes up 33% by the end of the month, compared with the beginning of the month, from +25°C to +26°C.

Is St Martin warm or cold in May?

St Martin is typically warm in May.

Maximum temperatures go up compared to the previous month from +25°C to +26°C. The minimum temperature also goes up from +22°C to +23°C.

It’s generally warm, but pack a long-sleeve shirt for evenings.

Take a look at how May is compared to other months in St Martin:

Climate in St Martin in May

St Martin weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+25°C+26°C+26°C
Min. temperature
+19°C+20°C+21°C
Max. temperature
+29°C+30°C+31°C
Rainfall
33 mm66 mm46 mm
Wind
5 m/s5 m/s5 m/s
Humidity
79%81%82%
Air pressure
1014 HPa1015 HPa1016 HPa
Sunny days
421
Cloudy days
677
Rainy days
192221
Snowy days
000

May typically has worse weather conditions compared to April. It’s getting warmer as May arrives. The average maximum temperature goes up from +25°C to +26°C during the day. Prepare for more rain. Average rainfall goes from 33 mm to 66 mm. Humidity rises from 79% to 81%. The average wind speed doesn’t change much during May, staying around 5 m/s. The days becoming less sunny, going from 4 sunny days in April to 2 in May.

But maybe it is worth considering traveling in June as the weather gets better.

Wind

Wind speed in St Martin in May based on historical data.
Last Year
Historical Data

The average wind speed is 5 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in St Martin is gradually increasing during May, going from 4 m/s to 6 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in St Martin based on historical data.
Last Year
Historical Data
Typically, there is a 45% chance of rain on an average day in May, with total rainfall of approximately 34 mm. The maximum amount of rainfall per day is around 8 mm, which is considered light rain. May is a pretty wet month with over 14 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how May is compared with other months in the amount of precipitation, total mm:
St Martin wettest month is October, where a typical day has a 77% chance of precipitation and 115 mm of rainfall per day. March, on the other hand, is the driest month with a mere 58% chance of precipitation and 20 mm of rainfall per day.

How was the weather last May in St Martin?

This is the weather in St Martin in May 2024:
1 May
☀️
+25°C
2 May
☀️
+25°C
3 May
☀️
+25°C
4 May
☀️
+25°C
5 May
☀️
+26°C
6 May
☀️
+25°C
7 May
☀️
+25°C
8 May
☁️
+25°C
9 May
☀️
+26°C
10 May
☀️
+26°C
11 May
☀️
+26°C
12 May
☀️
+25°C
13 May
🌧️
+25°C
14 May
☀️
+25°C
15 May
☀️
+25°C
16 May
☀️
+25°C
17 May
☀️
+25°C
18 May
☀️
+26°C
19 May
☁️
+26°C
20 May
☀️
+25°C
21 May
☁️
+25°C
22 May
☀️
+26°C
23 May
☁️
+25°C
24 May
🌧️
+25°C
25 May
☁️
+25°C
26 May
🌧️
+25°C
27 May
🌧️
+26°C
28 May
☁️
+25°C
29 May
☀️
+25°C
30 May
☀️
+26°C
31 May
☁️
+26°C
In May 2024 St Martin had 20 sunny days, 7 cloudy days, and 4 rainy days. The average maximum temperature was +25°C, with an absolute maximum of +26°C and a minimum of +25°C. The average humidity was 81%, with a maximum of 100% and a minimum of 69%. The average wind speed was 5 m/s, with a maximum of 9 m/s and a minimum of 1 m/s.
Are you planning a trip in May?

Climate Change over Years

This is how St Martin climate have been changing during last 43 years period.

The climate in St Martin in May has not changed much over the last 43 years.

The average temperature was the lowest in 1985 (+24°C) and the highest in 2020 (+28°C). The driest year was 1994 with only 343 mm of rainfall, and the wettest year was 1999 with 1121 mm.

FAQ

Frequently asked questions about the weather in St Martin in May:

Is May a good time to visit St Martin?

It’s always a good time to visit St Martin, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in St Martin in May?

May is warm in St Martin. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is St Martin rainy in May?

St Martin is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in St Martin in May?

Usually, it’s not very sunny in St Martin in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Monthly weather in St Martin

Source of the data

For this page, we’ve looked at the typical weather in St Martin, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.