Weather in Montpellier in May

Prime time. May is about as good as Montpellier gets. Highs average 21.8 °C, lows 12.7 °C, and rain falls on 8 days — nothing in the month is working against you.

May ranks 2 of 12 in Montpellier. Only June scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain on 8 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average May reaches 30 °C. Across the twenty years measured, the hottest May day reached 33.2 °C and the coldest night fell to 5.4 °C, and the wettest single day dropped 54 mm — roughly 110% of the month's rain in one day.

May is moderately variable: 7 mm in the driest year against 134 mm in the wettest, around an average of 49 mm. Roughly two Mays in three land near that average, and the third does something else entirely.

Wind is light at 12.2 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 70%.

How May sits in the year

The month is on the way up: 3.8 °C warmer than April, and June adds another 5.2 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in May

14.7 hours of daylight, gaining 1.1 hours across the month. That is between Montpellier's extremes of 15.4 and 9 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 16.3 °C in May — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 22.3 °C in August and bottoms out at 12.6 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, April is the trade worth considering — 11 points weaker on weather, and materially quieter.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

May in Montpellier versus nearby

If Montpellier is one option among several, the nearby comparison is worth making. Marseille is close enough to be a coin toss — 2.3 °C warmer, 1 day less rain. Toulouse is the weaker option in May — within a degree on temperature, 6 days more rain.

So: May is effectively as good as it gets here — 3 points behind June, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Montpellier

See all twelve months in Montpellier, or where else to go in May.