Saint-Pierre weather in December

In December, Saint-Pierre sees average daytime highs of 25°C and overnight lows near 20°C, with 174 mm of rain across 21.6 wet days and about 13.3 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 9% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 12 min at the start of December to 13 h 18 min by month's end. Set against the rest of the year, December is Saint-Pierre's 10th-clearest and 12th-windiest month. For the whole year in context, see Saint-Pierre's year-round climate.

Daytime high
25°
4th warmest
Overnight low
20°
9th coldest
Rainfall
174 mm
21.6 wet days
Daylight
13 h 18 min
5:35 AM – 6:53 PM
Cloud cover
70%
10th clearest
Wind
6 km/h
12th windiest
Solar energy
7.08 kWh/m²
Travel score
5.0
out of 10

Saint-Pierre is French commune in Réunion.

Density
876/km²
people per km²
Founded
1735

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical December day in Saint-Pierre reaches about 25°C in the afternoon and slips back to 20°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12419
22419
32419
42419
52419
62419
72519
82519
92519
102519
112519
122519
132519
142520
152520
162520
172520
182520
192520
202520
212520
222520
232520
242520
252520
262520
272520
282520
292520
302520
312520

Saint-Pierre weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 21°28023.913.24.5
Feb25° / 21°26422.712.74.4
Mar25° / 20°21221.312.25.0
Apr24° / 19°9318.211.55.6
May22° / 18°8617.1115.8
Jun20° / 16°5013.710.75.9
Jul20° / 15°4914.310.85.7
Aug20° / 15°4512.611.36.1
Sep21° / 15°451211.96.2
Oct22° / 16°5613.412.56.2
Nov24° / 18°9616.4135.8
Dec25° / 20°17421.613.35.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33466
43466
53367
63367
73367
83367
93367
103268
113268
123169
133169
143070
153070
163070
172971
182971
192872
202872
212773
222773
232773
242674
252674
262575
272476
282476
292476
302476
312476

Chance of precipitation in December

Any precipitation

Saint-Pierre gets around 174 mm of rain over 21.6 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 70% and peaks near 78% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
163
264
364
464
565
665
766
867
967
1068
1168
1269
1369
1470
1570
1670
1771
1871
1971
2071
2172
2272
2373
2473
2574
2675
2775
2876
2977
3077
3178

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the muggy band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 48% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11259290
21159300
31158310
41156330
51155340
61055350
71054360
81052380
91050400
10949410
11948430
12947441
13846451
14845461
15745471
16744481
17644491
18543511
19543511
20543511
21442531
22442531
23342541
24341551
25340552
26239572
27238582
28237592
29136603
30134623
31133633

Wind in December

Winds average 6 km/h in December, the calmest month.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 12 min at the start of December to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:32 AM to 5:43 AM, and sunset from 6:44 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:326:44
213.25:326:45
313.25:326:45
413.25:326:46
513.25:326:47
613.25:326:47
713.35:336:48
813.35:336:48
913.35:336:49
1013.35:336:50
1113.35:346:50
1213.35:346:51
1313.35:346:51
1413.35:356:52
1513.35:356:52
1613.35:356:53
1713.35:366:54
1813.35:366:54
1913.35:376:55
2013.35:376:55
2113.35:386:56
2213.35:386:56
2313.35:396:57
2413.35:396:57
2513.35:406:57
2613.35:406:58
2713.35:416:58
2813.35:416:59
2913.35:426:59
3013.35:426:59
3113.35:437:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.08 kWh/m².

For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 7.11 kWh/m² in November across the year — December's 7.08 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.1Intense
47.1Intense
57.1Intense
67.1Intense
77.1Intense
87.1Intense
97.1Intense
107.1Intense
117.1Intense
127.1Intense
137.1Intense
147.1Intense
157.1Intense
167.1Intense
177.1Intense
187.1Intense
197.0Intense
207.0Intense
217.0Intense
227.0Intense
237.0Intense
247.0Intense
256.9Intense
266.9Intense
276.9Intense
286.8Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in December

Hazard calendar for Saint-Pierre

In seasonPeak

In December, Saint-Pierre sits inside its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

Saint-Pierre sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Saint-Pierre's monsoon runs December–March, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Saint-Pierre?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.0
Sightseeing
9th-best month of the year
4.4
Beach & pool
4th-best month of the year

December is a reasonable time to visit Saint-Pierre for sightseeing.

What to pack for Saint-Pierre in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Saint-Pierre sees daytime highs around 25°C and nights near 20°C. Pack rain gear and sun protection. Worth having: light clothes. About 22 days see rain.

rain gearsun protectionlight clothes

Sea temperature near Saint-Pierre in December

The nearest coast averages about 27°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in February at about 28°C and coldest in August near 23°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar28Warm
Apr27Warm
May26Warm
Jun25Warm
Jul24Refreshing
Aug23Refreshing
Sep23Refreshing
Oct24Warm
Nov25Warm
Dec27Warm

UV index in Saint-Pierre in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint-Pierre peaks around January 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 17UV 16Jul 10UV 6
UV index (midday)Level
Jan17Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul6High
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Saint-Pierre?

Saint-Pierre sits at 21.3°S, 55.5°E, 36 m above sea level, in Reunion. The nearest listed city is Le Tampon, 8.0 km away.

Le TamponSaint-LouisSaint-JosephPiton Saint-LeuSaint-LeuSaint-BenoîtSaint-PaulSaint-André

Topography around Saint-Pierre

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Pierre.

Within 3 km, the terrain around Saint-Pierre has only modest variations in elevation — a maximum elevation change of 227 m around an average of 54 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,751 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,030 m.

The land around Saint-Pierre is covered by water (38%), artificial surfaces (23%) and trees (21%) within 3 km, water (51%) and trees (31%) within 16 km, and water (79%) within 80 km.

3 km
227 m
16 km
1,751 m
80 km
3,030 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Le Tampon 8.0 km · Saint-Louis 9.0 km · Saint-Joseph 15 km · Piton Saint-Leu 22 km · Saint-Leu 27 km · Saint-Benoît 42 km · Saint-Paul 42 km · Saint-André 45 km

Reunion travel facts

Power plugs
Type C / E
220 V · 50 Hz

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Saint-Pierre (-21.3393°, 55.4781°, elevation 36 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).