St Denis in December usually sees fair weather conditions, with an average daily high temperature of +27°C and roughly 2 sunny days. However, you should prepare for about 25 rainy days with an average precipitation of 150 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+27°C
Avg. max. temperature
+18°C
Min.
+33°C
Max.
150 mm
Total precipitation
75%
Avg. humidity
3 m/s
Avg. wind
2 ☀️
Sunny Days
3 ⛅️
Cloudy
25 🌦
Rainy
Our opinion: St Denis has OK weather in December.
Avionero - Smarter Travel Planning for a Better World
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!
Donates 10% of all revenue to charity!
Average temperature in St Denis in December
Here are the expected maximum, average and minimum temperatures in St Denis for December based on the historical data.
Last Year
Historical Data
The temperature in December is +30°C on average, with a range between a maximum of +31°C during the day and a minimum of +20°C at night.
The average maximum temperature goes up 9% by the end of the month, compared with the beginning of the month, from +29°C to +30°C.
Is St Denis warm or cold in December?
St Denis is typically warm in December.
Maximum temperatures go up compared to the previous month from +26°C to +27°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 December is compared to other months in St Denis:
Climate in St Denis in December
St Denis weather looks like this, on average, in December and the surrounding months.
November
December
January
Avg. temperature
+26°C
+27°C
+28°C
Min. temperature
+17°C
+18°C
+19°C
Max. temperature
+31°C
+33°C
+33°C
Rainfall
91 mm
150 mm
291 mm
Wind
3 m/s
3 m/s
3 m/s
Humidity
73%
75%
77%
Air pressure
1016 HPa
1014 HPa
1012 HPa
Sunny days
2
2
1
Cloudy days
5
3
2
Rainy days
22
25
27
Snowy days
0
0
0
December typically has worse weather conditions compared to November.It’s getting warmer as December arrives. The average maximum temperature goes up from +26°C to +27°C during the day.Prepare for more rain. Average rainfall goes from 91 mm to 150 mm.Humidity rises from 73% to 75%.The average wind speed doesn’t change much during December, staying around 3 m/s.The amount of sunny days stay about the same, averaging 2 sunny days during the month.
January brings much the same weather, it remains ok.
Wind speed in St Denis in December based on historical data.
Last Year
Historical Data
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in St Denis is gradually increasing during December, going from 2 m/s to 7 m/s over the course of the month.
Rain
Amount of rainfall in mm during December in St Denis based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in December stands at 81%, leading to total precipitation of around 150 mm. The maximum amount of rainfall per day is around 33 mm, which is moderate rain.December is a pretty wet month with over 25 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how December is compared with other months in the amount of precipitation, total mm:
St Denis wettest month is January, where a typical day has a 87% chance of precipitation and 291 mm of rainfall per day. September, on the other hand, is the driest month with a mere 63% chance of precipitation and 42 mm of rainfall per day.
How was the weather last December in St Denis?
This is the weather in St Denis in December 2024:
1 December
☁️
+29°C
2 December
🌧️
+27°C
3 December
🌧️
+30°C
4 December
☀️
+28°C
5 December
🌧️
+28°C
6 December
🌧️
+29°C
7 December
🌧️
+28°C
8 December
🌧️
+30°C
9 December
🌧️
+30°C
10 December
🌧️
+30°C
11 December
🌧️
+29°C
12 December
☀️
+28°C
13 December
🌧️
+30°C
14 December
☀️
+31°C
15 December
☀️
+31°C
16 December
🌧️
+30°C
17 December
☀️
+30°C
18 December
🌧️
+31°C
19 December
🌧️
+31°C
20 December
🌧️
+30°C
21 December
🌧️
+31°C
22 December
🌧️
+31°C
23 December
☀️
+31°C
24 December
☀️
+31°C
25 December
🌧️
+30°C
26 December
☀️
+30°C
27 December
☁️
+30°C
28 December
☁️
+30°C
29 December
☁️
+31°C
30 December
☁️
+30°C
31 December
🌧️
+30°C
In December 2024 St Denis had 8 sunny days, 5 cloudy days, and 18 rainy days. The average maximum temperature was +30°C, with an absolute maximum of +31°C and a minimum of +27°C. The average humidity was 80%, with a maximum of 99% and a minimum of 53%. The average wind speed was 4 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in December?
Climate Change over Years
This is how St Denis climate have been changing during last 43 years period.
The climate in St Denis in December has not changed much over the last 43 years.
The average temperature was the lowest in 1983 (+24°C) and the highest in 2019 (+28°C). The driest year was 1992 with only 801 mm of rainfall, and the wettest year was 2018 with 2301 mm.
FAQ
Frequently asked questions about the weather in St Denis in December:
Is December a good time to visit St Denis?
It’s always a good time to visit St Denis, but the weather is changeable in December, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in St Denis in December?
December is warm in St Denis. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Is St Denis rainy in December?
St Denis is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in St Denis in December?
Usually, it’s not very sunny in St Denis in December, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in Réunion
Check out the weather for other cities in Réunion.
For this page, we’ve looked at the typical weather in St Denis, 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.
