Saint-Denis weather in October
In October, Saint-Denis sees average daytime highs of 23°C and overnight lows near 18°C, with 47 mm of rain across 11 wet days and about 12.5 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 33% of the time in October, and the air most often feels comfortable.
Daylight stretches from about 12 h 12 min at the start of October to 12 h 48 min by month's end. Set against the rest of the year, October is Saint-Denis's 6th-clearest and 6th-windiest month. For the whole year in context, see Saint-Denis's year-round climate.
- Daytime high
- 23°
- 8th warmest
- Overnight low
- 18°
- 5th coldest
- Rainfall
- 47 mm
- 11 wet days
- Daylight
- 12 h 30 min
- 5:49 AM – 6:18 PM
- Cloud cover
- 53%
- 6th clearest
- Wind
- 8 km/h
- 6th windiest
- Solar energy
- 6.72 kWh/m²
- Travel score
- 6.7
- out of 10
Saint-Denis is French commune in Réunion.
- Density
- 1,084/km²
- people per km²
- Founded
- 1669
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Day-to-day highs hold fairly steady near 23°C through the month.
A typical October day in Saint-Denis reaches about 23°C in the afternoon and slips back to 18°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 24°C. Set against its neighbours, October runs about 1°C warmer than September and about 1°C cooler than November.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg low (°C) | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 22 | 17 |
| 2 | 22 | 17 |
| 3 | 22 | 17 |
| 4 | 22 | 17 |
| 5 | 22 | 17 |
| 6 | 22 | 17 |
| 7 | 22 | 18 |
| 8 | 22 | 18 |
| 9 | 22 | 18 |
| 10 | 22 | 18 |
| 11 | 22 | 18 |
| 12 | 22 | 18 |
| 13 | 22 | 18 |
| 14 | 23 | 18 |
| 15 | 23 | 18 |
| 16 | 23 | 18 |
| 17 | 23 | 18 |
| 18 | 23 | 18 |
| 19 | 23 | 18 |
| 20 | 23 | 18 |
| 21 | 23 | 18 |
| 22 | 23 | 18 |
| 23 | 23 | 18 |
| 24 | 23 | 18 |
| 25 | 23 | 18 |
| 26 | 23 | 18 |
| 27 | 23 | 18 |
| 28 | 23 | 18 |
| 29 | 23 | 18 |
| 30 | 23 | 18 |
| 31 | 23 | 19 |
Saint-Denis weather by month
How October compares with the rest of the year at a glance. October is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 22° | 251 | 21.7 | 13.1 | 4.9 |
| Feb | 26° / 22° | 244 | 21.9 | 12.7 | 4.5 |
| Mar | 26° / 22° | 219 | 22 | 12.1 | 5.0 |
| Apr | 25° / 21° | 78 | 16.7 | 11.5 | 5.8 |
| May | 23° / 19° | 74 | 16 | 11 | 6.2 |
| Jun | 21° / 17° | 40 | 11 | 10.8 | 6.6 |
| Jul | 21° / 16° | 36 | 11.9 | 10.9 | 6.5 |
| Aug | 21° / 16° | 34 | 10 | 11.3 | 6.8 |
| Sep | 21° / 17° | 36 | 10.1 | 11.9 | 6.8 |
| Oct | 23° / 18° | 47 | 11 | 12.5 | 6.7 |
| Nov | 24° / 19° | 84 | 15.4 | 13 | 6.1 |
| Dec | 25° / 21° | 138 | 18.9 | 13.2 | 5.4 |
Cloud cover in October
The sky is clear or mostly clear about 33% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 26% of October, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 68 | 67 | 66 | 66 | 64 | 64 | 63 | 63 | 62 | 61 | 60 | 59 | 60 | 59 | 59 | 58 | 59 | 58 | 58 | 58 | 58 | 57 | 57 | 56 | 55 | 54 | 54 | 53 | 52 | 51 | 50 |
| Cloudier (%) | 32 | 33 | 34 | 34 | 36 | 36 | 37 | 37 | 38 | 39 | 40 | 41 | 40 | 41 | 41 | 42 | 41 | 42 | 42 | 42 | 42 | 43 | 43 | 44 | 45 | 46 | 46 | 47 | 48 | 49 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 68 | 32 |
| 2 | 67 | 33 |
| 3 | 66 | 34 |
| 4 | 66 | 34 |
| 5 | 64 | 36 |
| 6 | 64 | 36 |
| 7 | 63 | 37 |
| 8 | 63 | 37 |
| 9 | 62 | 38 |
| 10 | 61 | 39 |
| 11 | 60 | 40 |
| 12 | 59 | 41 |
| 13 | 60 | 40 |
| 14 | 59 | 41 |
| 15 | 59 | 41 |
| 16 | 58 | 42 |
| 17 | 59 | 41 |
| 18 | 58 | 42 |
| 19 | 58 | 42 |
| 20 | 58 | 42 |
| 21 | 58 | 42 |
| 22 | 57 | 43 |
| 23 | 57 | 43 |
| 24 | 56 | 44 |
| 25 | 55 | 45 |
| 26 | 54 | 46 |
| 27 | 54 | 46 |
| 28 | 53 | 47 |
| 29 | 52 | 48 |
| 30 | 51 | 49 |
| 31 | 50 | 50 |
Chance of precipitation in October
Saint-Denis gets around 47 mm of rain over 11 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 36% and peaks near 42% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 32 | 31 | 31 | 31 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 36 | 36 | 36 | 37 | 37 | 37 | 38 | 38 | 38 | 39 | 39 | 40 | 40 | 41 | 41 | 42 | 42 |
| Rain chance (%) | |
|---|---|
| 1 | 32 |
| 2 | 31 |
| 3 | 31 |
| 4 | 31 |
| 5 | 31 |
| 6 | 32 |
| 7 | 32 |
| 8 | 33 |
| 9 | 33 |
| 10 | 34 |
| 11 | 34 |
| 12 | 35 |
| 13 | 35 |
| 14 | 35 |
| 15 | 36 |
| 16 | 36 |
| 17 | 36 |
| 18 | 37 |
| 19 | 37 |
| 20 | 37 |
| 21 | 38 |
| 22 | 38 |
| 23 | 38 |
| 24 | 39 |
| 25 | 39 |
| 26 | 40 |
| 27 | 40 |
| 28 | 41 |
| 29 | 41 |
| 30 | 42 |
| 31 | 42 |
Humidity in October
Most of October feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the comfortable band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Comfortable (%) | 60 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 50 | 50 | 49 | 49 | 48 | 47 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 | 31 |
| Humid (%) | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 48 | 49 | 50 | 51 | 51 | 52 | 52 | 53 | 54 | 54 | 55 | 55 |
| Muggy (%) | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 12 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 8 | 60 | 31 | 1 |
| 2 | 8 | 58 | 32 | 2 |
| 3 | 8 | 57 | 33 | 2 |
| 4 | 8 | 56 | 34 | 2 |
| 5 | 8 | 55 | 35 | 2 |
| 6 | 8 | 54 | 36 | 2 |
| 7 | 8 | 53 | 37 | 2 |
| 8 | 8 | 52 | 38 | 2 |
| 9 | 8 | 50 | 39 | 3 |
| 10 | 7 | 50 | 40 | 3 |
| 11 | 7 | 49 | 41 | 3 |
| 12 | 7 | 49 | 42 | 3 |
| 13 | 6 | 48 | 42 | 3 |
| 14 | 6 | 47 | 43 | 4 |
| 15 | 5 | 47 | 44 | 4 |
| 16 | 5 | 46 | 45 | 4 |
| 17 | 4 | 45 | 46 | 5 |
| 18 | 4 | 44 | 47 | 5 |
| 19 | 3 | 43 | 48 | 6 |
| 20 | 3 | 42 | 48 | 6 |
| 21 | 2 | 41 | 49 | 7 |
| 22 | 2 | 40 | 50 | 8 |
| 23 | 2 | 39 | 51 | 8 |
| 24 | 2 | 38 | 51 | 9 |
| 25 | 2 | 37 | 52 | 9 |
| 26 | 2 | 36 | 52 | 10 |
| 27 | 2 | 35 | 53 | 10 |
| 28 | 2 | 34 | 54 | 10 |
| 29 | 2 | 33 | 54 | 11 |
| 30 | 2 | 32 | 55 | 11 |
| 31 | 2 | 31 | 55 | 12 |
Wind in October
Winds average 8 km/h in October.
Across October, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
| 31 | 8 | calm |
Sunrise & sunset in October
Daylight runs from about 12 h 12 min at the start of October to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 36 minutes over October. Sunrise moves from 6:02 AM to 5:39 AM, and sunset from 6:13 PM to 6:25 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.2 | 12.2 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.8 |
| Sunrise (AM) | 6:02 | 6:01 | 6:00 | 5:59 | 5:58 | 5:57 | 5:56 | 5:55 | 5:54 | 5:53 | 5:53 | 5:52 | 5:51 | 5:50 | 5:49 | 5:49 | 5:48 | 5:47 | 5:46 | 5:46 | 5:45 | 5:44 | 5:44 | 5:43 | 5:42 | 5:42 | 5:41 | 5:40 | 5:40 | 5:39 | 5:39 |
| Sunset (PM) | 6:13 | 6:13 | 6:13 | 6:14 | 6:14 | 6:14 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:16 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 6:02 | 6:13 |
| 2 | 12.2 | 6:01 | 6:13 |
| 3 | 12.2 | 6:00 | 6:13 |
| 4 | 12.3 | 5:59 | 6:14 |
| 5 | 12.3 | 5:58 | 6:14 |
| 6 | 12.3 | 5:57 | 6:14 |
| 7 | 12.3 | 5:56 | 6:15 |
| 8 | 12.3 | 5:55 | 6:15 |
| 9 | 12.4 | 5:54 | 6:15 |
| 10 | 12.4 | 5:53 | 6:16 |
| 11 | 12.4 | 5:53 | 6:16 |
| 12 | 12.4 | 5:52 | 6:16 |
| 13 | 12.4 | 5:51 | 6:17 |
| 14 | 12.4 | 5:50 | 6:17 |
| 15 | 12.5 | 5:49 | 6:17 |
| 16 | 12.5 | 5:49 | 6:18 |
| 17 | 12.5 | 5:48 | 6:18 |
| 18 | 12.5 | 5:47 | 6:19 |
| 19 | 12.5 | 5:46 | 6:19 |
| 20 | 12.6 | 5:46 | 6:20 |
| 21 | 12.6 | 5:45 | 6:20 |
| 22 | 12.6 | 5:44 | 6:20 |
| 23 | 12.6 | 5:44 | 6:21 |
| 24 | 12.6 | 5:43 | 6:21 |
| 25 | 12.7 | 5:42 | 6:22 |
| 26 | 12.7 | 5:42 | 6:22 |
| 27 | 12.7 | 5:41 | 6:23 |
| 28 | 12.7 | 5:40 | 6:23 |
| 29 | 12.7 | 5:40 | 6:24 |
| 30 | 12.7 | 5:39 | 6:24 |
| 31 | 12.8 | 5:39 | 6:25 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 6.72 kWh/m².
For context, solar energy here swings from a low near 3.95 kWh/m² to a high of 7.17 kWh/m² in December across the year — October's 6.72 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 7.0 | 7.0 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.4 | Intense |
| 2 | 6.4 | Intense |
| 3 | 6.5 | Intense |
| 4 | 6.5 | Intense |
| 5 | 6.5 | Intense |
| 6 | 6.5 | Intense |
| 7 | 6.5 | Intense |
| 8 | 6.6 | Intense |
| 9 | 6.6 | Intense |
| 10 | 6.6 | Intense |
| 11 | 6.6 | Intense |
| 12 | 6.7 | Intense |
| 13 | 6.7 | Intense |
| 14 | 6.7 | Intense |
| 15 | 6.7 | Intense |
| 16 | 6.7 | Intense |
| 17 | 6.8 | Intense |
| 18 | 6.8 | Intense |
| 19 | 6.8 | Intense |
| 20 | 6.8 | Intense |
| 21 | 6.8 | Intense |
| 22 | 6.8 | Intense |
| 23 | 6.8 | Intense |
| 24 | 6.9 | Intense |
| 25 | 6.9 | Intense |
| 26 | 6.9 | Intense |
| 27 | 6.9 | Intense |
| 28 | 6.9 | Intense |
| 29 | 6.9 | Intense |
| 30 | 7.0 | Intense |
| 31 | 7.0 | Intense |
Hazard calendar for Saint-Denis
None of Saint-Denis's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Saint-Denis sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Saint-Denis's monsoon runs December–March, when most of the year's rain falls.
Is October a good time to visit Saint-Denis?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a reasonable time to visit Saint-Denis for sightseeing.
What to pack for Saint-Denis in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Saint-Denis sees daytime highs around 23°C and nights near 18°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.
Sea temperature near Saint-Denis in October
The nearest coast averages about 24°C in October — 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 24°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 28 | 28 | 27 | 25 | 24 | 24 | 24 | 24 | 25 | 27 |
| Comfort | Warm | Tropical | Tropical | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Tropical |
| Mar | 28 | Tropical |
| Apr | 28 | Warm |
| May | 27 | Warm |
| Jun | 25 | Warm |
| Jul | 24 | Warm |
| Aug | 24 | Refreshing |
| Sep | 24 | Refreshing |
| Oct | 24 | Warm |
| Nov | 25 | Warm |
| Dec | 27 | Warm |
UV index in Saint-Denis in October
Clear-sky midday UV in October peaks around 12 (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-Denis peaks around January 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 16 | 15 | 13 | 10 | 8 | 6 | 6 | 9 | 10 | 12 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | Very high | High | High | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 16 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 8 | Very high |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 9 | Very high |
| Sep | 10 | Extreme |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Where is Saint-Denis?
Saint-Denis sits at 20.9°S, 55.5°E, 44 m above sea level, in Reunion. The nearest listed city is Sainte-Marie, 11 km away.
Topography around Saint-Denis
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Denis.
Within 3 km, the terrain around Saint-Denis has large variations in elevation — a maximum elevation change of 635 m around an average of 104 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,258 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,030 m.
The land around Saint-Denis is covered by water (40%), trees (33%) and artificial surfaces (24%) within 3 km, water (55%) and trees (34%) within 16 km, and water (78%) within 80 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-Denis (-20.8823°, 55.4504°, elevation 44 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).