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Le Grau-du-Roi Weather in September
Le Grau-du-Roi in September sees high daytime temperatures of 24°C (75°F) and nighttime lows of 17°C (63°F). Rainfall is fairly high this month at around 100 mm (3.9 in), so pack a rain jacket to stay dry.
Rainfall in Le Grau-du-Roi in September
Historically, approximately 7 days this month are expected to have rain, averaging 100 mm (3.9 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Le Grau-du-Roi in September
If you're visiting Le Grau-du-Roi in September, expect highs of 24°C (75°F) and overnight lows around 17°C (63°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 17°C (63°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Le Grau-du-Roi in September
The month enjoys around 243 hours of sunshine, creating mostly sunny days with good weather conditions.If your ideal day consists of dry skies and pleasant temperatures, May, June, July and August typically offer the best circumstances for Le Grau-du-Roi.
Le Grau-du-Roi Temperature in September
Min Temperature
17°C (63°F)
Max Temperature
24°C (75°F)
Chance of Rain
23%
Precipitation
100 mm (3.9 in)
Rainy days
7 days
Humidity
71% *
Sunshine
243 hours *
Percentage Sunshine
*
* Data from: Montpellier, France (22 KM, 13 Miles).
Le Grau-du-Roi Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Le Grau-du-Roi - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Le Grau-du-Roi typically drop from around 27°C (81°F) at the start of September to approximately 23°C (73°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 17°C (63°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Le Grau-du-Roi in September
Browse day-by-day weather records for Le Grau-du-Roi spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Le Grau-du-Roi historical weather extremes in September
Based on weather observations in Le Grau-du-Roi between 1976 and 2026, these are the recorded extremes during September.
- The warmest day in September was on September 23, 2018, with a maximum of 35°C (95°F).
- The lowest daytime temperature in September was 13°C (55°F), recorded on September 24, 1977.
- Nighttime temperatures dropped to 5°C (41°F) on September 21, 1977, marking the coldest September night on record.
Best Places in France in September
Find out more about the weather in France and which places have the best travel conditions in this month. See all of France in September →
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).
What to Wear in Le Grau-du-Roi in September
For Le Grau-du-Roi in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Le Grau-du-Roi in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Le Grau-du-Roi 3-Day Forecast
More climate data for Le Grau-du-Roi
Temperature Rainfall Sunshine Humidity
See the full Le Grau-du-Roi climate overview or explore weather in France.
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Where to go in September - average daytime high across popular destinations.
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The 10 most charming villages in France
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