Saint-Laurent-du-Maroni weather in October
In October, Saint-Laurent-du-Maroni sees average daytime highs of 31°C and overnight lows near 23°C, with 100 mm of rain across 16.1 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 35% of the time in October, and the air most often feels oppressive.
Daylight stretches from about 12 hours at the start of October to 11 h 48 min by month's end. Set against the rest of the year, October is Saint-Laurent-du-Maroni's 3rd-clearest and 6th-windiest month. For the whole year in context, see Saint-Laurent-du-Maroni's year-round climate.
- Daytime high
- 31°
- 1st warmest
- Overnight low
- 23°
- 10th coldest
- Rainfall
- 100 mm
- 16.1 wet days
- Daylight
- 11 h 54 min
- 6:25 AM – 6:17 PM
- Cloud cover
- 52%
- 3rd clearest
- Wind
- 9 km/h
- 6th windiest
- Solar energy
- 5.95 kWh/m²
- Travel score
- 3.8
- out of 10
Saint-Laurent-du-Maroni is commune in Guyane, France.
- Density
- 5/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Day-to-day highs hold fairly steady near 31°C through the month.
A typical October day in Saint-Laurent-du-Maroni reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, October runs on par with September and about 1°C warmer 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) | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 32 | 23 |
| 2 | 32 | 23 |
| 3 | 32 | 23 |
| 4 | 32 | 23 |
| 5 | 32 | 23 |
| 6 | 32 | 23 |
| 7 | 32 | 23 |
| 8 | 32 | 23 |
| 9 | 32 | 23 |
| 10 | 32 | 23 |
| 11 | 32 | 23 |
| 12 | 32 | 23 |
| 13 | 32 | 23 |
| 14 | 32 | 23 |
| 15 | 32 | 23 |
| 16 | 32 | 23 |
| 17 | 32 | 23 |
| 18 | 32 | 23 |
| 19 | 31 | 23 |
| 20 | 31 | 23 |
| 21 | 31 | 23 |
| 22 | 31 | 23 |
| 23 | 31 | 23 |
| 24 | 31 | 23 |
| 25 | 31 | 23 |
| 26 | 31 | 23 |
| 27 | 31 | 23 |
| 28 | 31 | 23 |
| 29 | 31 | 23 |
| 30 | 31 | 23 |
| 31 | 31 | 23 |
How October really feels in Saint-Laurent-du-Maroni
Once humidity and wind are folded in, October averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Saint-Laurent-du-Maroni weather by month
How October compares with the rest of the year at a glance. October is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 23° | 164 | 21.4 | 11.7 | 4.1 |
| Feb | 29° / 23° | 123 | 17 | 11.8 | 4.4 |
| Mar | 29° / 23° | 106 | 17.4 | 12 | 4.4 |
| Apr | 29° / 24° | 186 | 21.3 | 12.1 | 3.7 |
| May | 30° / 24° | 320 | 27.4 | 12.2 | 3.1 |
| Jun | 30° / 23° | 332 | 28.1 | 12.3 | 2.9 |
| Jul | 30° / 23° | 254 | 26.5 | 12.3 | 3.1 |
| Aug | 31° / 23° | 148 | 19.5 | 12.2 | 3.6 |
| Sep | 31° / 23° | 88 | 14.6 | 12 | 3.9 |
| Oct | 31° / 23° | 100 | 16.1 | 11.9 | 3.8 |
| Nov | 31° / 23° | 172 | 21.9 | 11.7 | 3.3 |
| Dec | 29° / 23° | 203 | 25.1 | 11.7 | 3.4 |
Cloud cover in October
The sky is clear or mostly clear about 35% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 27% of October, with mostly cloudy or overcast conditions the remaining 38%. 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 (%) | 69 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 67 | 66 | 66 | 66 | 66 | 65 | 65 | 63 | 63 | 62 | 61 | 60 | 59 | 57 | 56 | 55 | 54 | 53 | 52 | 51 | 51 |
| Cloudier (%) | 31 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 35 | 35 | 37 | 37 | 38 | 39 | 40 | 41 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 49 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 69 | 31 |
| 2 | 68 | 32 |
| 3 | 68 | 32 |
| 4 | 68 | 32 |
| 5 | 68 | 32 |
| 6 | 67 | 33 |
| 7 | 67 | 33 |
| 8 | 67 | 33 |
| 9 | 67 | 33 |
| 10 | 67 | 33 |
| 11 | 67 | 33 |
| 12 | 66 | 34 |
| 13 | 66 | 34 |
| 14 | 66 | 34 |
| 15 | 66 | 34 |
| 16 | 65 | 35 |
| 17 | 65 | 35 |
| 18 | 63 | 37 |
| 19 | 63 | 37 |
| 20 | 62 | 38 |
| 21 | 61 | 39 |
| 22 | 60 | 40 |
| 23 | 59 | 41 |
| 24 | 57 | 43 |
| 25 | 56 | 44 |
| 26 | 55 | 45 |
| 27 | 54 | 46 |
| 28 | 53 | 47 |
| 29 | 52 | 48 |
| 30 | 51 | 49 |
| 31 | 51 | 49 |
Chance of precipitation in October
Saint-Laurent-du-Maroni gets around 100 mm of rain over 16.1 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 52% and peaks near 63% 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 (%) | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 48 | 49 | 49 | 49 | 49 | 49 | 49 | 50 | 50 | 51 | 51 | 52 | 53 | 54 | 55 | 56 | 56 | 57 | 58 | 59 | 60 | 62 | 63 |
| Rain chance (%) | |
|---|---|
| 1 | 49 |
| 2 | 49 |
| 3 | 49 |
| 4 | 49 |
| 5 | 49 |
| 6 | 48 |
| 7 | 48 |
| 8 | 48 |
| 9 | 48 |
| 10 | 49 |
| 11 | 49 |
| 12 | 49 |
| 13 | 49 |
| 14 | 49 |
| 15 | 49 |
| 16 | 50 |
| 17 | 50 |
| 18 | 51 |
| 19 | 51 |
| 20 | 52 |
| 21 | 53 |
| 22 | 54 |
| 23 | 55 |
| 24 | 56 |
| 25 | 56 |
| 26 | 57 |
| 27 | 58 |
| 28 | 59 |
| 29 | 60 |
| 30 | 62 |
| 31 | 63 |
Humidity in October
Most of October feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the oppressive band about 70% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oppressive (%) | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 72 | 72 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 69 | 69 | 68 | 68 | 68 | 67 | 67 | 67 | 67 | 66 | 66 | 65 | 65 |
| Miserable (%) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 31 | 31 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 34 | 34 | 35 | 35 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 73 | 27 |
| 2 | 73 | 27 |
| 3 | 73 | 27 |
| 4 | 73 | 27 |
| 5 | 73 | 27 |
| 6 | 73 | 27 |
| 7 | 73 | 27 |
| 8 | 73 | 27 |
| 9 | 73 | 27 |
| 10 | 72 | 28 |
| 11 | 72 | 28 |
| 12 | 71 | 29 |
| 13 | 71 | 29 |
| 14 | 71 | 29 |
| 15 | 70 | 30 |
| 16 | 70 | 30 |
| 17 | 70 | 30 |
| 18 | 70 | 30 |
| 19 | 69 | 31 |
| 20 | 69 | 31 |
| 21 | 68 | 32 |
| 22 | 68 | 32 |
| 23 | 68 | 32 |
| 24 | 67 | 33 |
| 25 | 67 | 33 |
| 26 | 67 | 33 |
| 27 | 67 | 33 |
| 28 | 66 | 34 |
| 29 | 66 | 34 |
| 30 | 65 | 35 |
| 31 | 65 | 35 |
Wind in October
Winds average 9 km/h in October.
Across October, daily wind ranges from about 9 km/h on the calmest days to 9 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) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in October
Daylight runs from about 12 hours at the start of October to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 12 minutes over October. Sunrise moves from 6:27 AM to 6:25 AM, and sunset from 6:24 PM to 6:14 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) | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 |
| Sunrise (AM) | 6:27 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 |
| Sunset (PM) | 6:24 | 6:23 | 6:23 | 6:22 | 6:22 | 6:21 | 6:21 | 6:21 | 6:20 | 6:20 | 6:19 | 6:19 | 6:19 | 6:18 | 6:18 | 6:17 | 6:17 | 6:17 | 6:16 | 6:16 | 6:16 | 6:16 | 6:15 | 6:15 | 6:15 | 6:15 | 6:15 | 6:14 | 6:14 | 6:14 | 6:14 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.0 | 6:27 | 6:24 |
| 2 | 11.9 | 6:26 | 6:23 |
| 3 | 11.9 | 6:26 | 6:23 |
| 4 | 11.9 | 6:26 | 6:22 |
| 5 | 11.9 | 6:26 | 6:22 |
| 6 | 11.9 | 6:26 | 6:21 |
| 7 | 11.9 | 6:26 | 6:21 |
| 8 | 11.9 | 6:26 | 6:21 |
| 9 | 11.9 | 6:25 | 6:20 |
| 10 | 11.9 | 6:25 | 6:20 |
| 11 | 11.9 | 6:25 | 6:19 |
| 12 | 11.9 | 6:25 | 6:19 |
| 13 | 11.9 | 6:25 | 6:19 |
| 14 | 11.9 | 6:25 | 6:18 |
| 15 | 11.9 | 6:25 | 6:18 |
| 16 | 11.9 | 6:25 | 6:17 |
| 17 | 11.9 | 6:25 | 6:17 |
| 18 | 11.9 | 6:25 | 6:17 |
| 19 | 11.9 | 6:25 | 6:16 |
| 20 | 11.9 | 6:25 | 6:16 |
| 21 | 11.9 | 6:25 | 6:16 |
| 22 | 11.8 | 6:25 | 6:16 |
| 23 | 11.8 | 6:25 | 6:15 |
| 24 | 11.8 | 6:25 | 6:15 |
| 25 | 11.8 | 6:25 | 6:15 |
| 26 | 11.8 | 6:25 | 6:15 |
| 27 | 11.8 | 6:25 | 6:15 |
| 28 | 11.8 | 6:25 | 6:14 |
| 29 | 11.8 | 6:25 | 6:14 |
| 30 | 11.8 | 6:25 | 6:14 |
| 31 | 11.8 | 6:25 | 6:14 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 5.95 kWh/m².
For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 6.17 kWh/m² in September across the year — October's 5.95 kWh/m² sits near the top of that range.
| 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) | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.1 | Intense |
| 2 | 6.1 | Intense |
| 3 | 6.1 | Intense |
| 4 | 6.1 | Intense |
| 5 | 6.1 | Intense |
| 6 | 6.1 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.1 | Intense |
| 9 | 6.0 | Intense |
| 10 | 6.0 | Intense |
| 11 | 6.0 | Intense |
| 12 | 6.0 | Intense |
| 13 | 6.0 | Intense |
| 14 | 6.0 | Intense |
| 15 | 6.0 | Bright |
| 16 | 6.0 | Bright |
| 17 | 6.0 | Bright |
| 18 | 6.0 | Bright |
| 19 | 5.9 | Bright |
| 20 | 5.9 | Bright |
| 21 | 5.9 | Bright |
| 22 | 5.9 | Bright |
| 23 | 5.8 | Bright |
| 24 | 5.8 | Bright |
| 25 | 5.8 | Bright |
| 26 | 5.8 | Bright |
| 27 | 5.7 | Bright |
| 28 | 5.7 | Bright |
| 29 | 5.7 | Bright |
| 30 | 5.6 | Bright |
| 31 | 5.6 | Bright |
Is October a good time to visit Saint-Laurent-du-Maroni?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a weaker month for outdoor sightseeing in Saint-Laurent-du-Maroni.
What to pack for Saint-Laurent-du-Maroni in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Saint-Laurent-du-Maroni sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.
Sea temperature near Saint-Laurent-du-Maroni in October
The nearest coast averages about 28°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 43 km away) is warmest in August at about 28°C and coldest in January near 26°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) | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 27 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 28 | Tropical |
| Sep | 28 | Tropical |
| Oct | 28 | Tropical |
| Nov | 28 | Warm |
| Dec | 27 | Warm |
UV index in Saint-Laurent-du-Maroni 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-Laurent-du-Maroni peaks around March 24 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (extreme).
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) | 13 | 13 | 14 | 14 | 13 | 11 | 11 | 11 | 12 | 12 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 13 | Extreme |
| Mar | 14 | Extreme |
| Apr | 14 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Extreme |
Air quality in Saint-Laurent-du-Maroni in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Saint-Laurent-du-Maroni is worst in February — around 24 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (August, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 22 | 24 | 24 | 24 | 19 | 12 | 8 | 7 | 10 | 14 | 12 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Moderate | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 22 | Moderate |
| Feb | 24 | Moderate |
| Mar | 24 | Moderate |
| Apr | 24 | Moderate |
| May | 19 | Moderate |
| Jun | 12 | Good |
| Jul | 8 | Good |
| Aug | 7 | Good |
| Sep | 10 | Good |
| Oct | 14 | Moderate |
| Nov | 12 | Good |
| Dec | 18 | Moderate |
Where is Saint-Laurent-du-Maroni?
Saint-Laurent-du-Maroni sits at 5.5°N, 54.0°W, 10 m above sea level, in French Guiana. The nearest listed city is Blauwgrond, 126 km away.
Topography around Saint-Laurent-du-Maroni
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Laurent-du-Maroni.
Within 3 km, the terrain around Saint-Laurent-du-Maroni has only modest variations in elevation — a maximum elevation change of 48 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 87 m; within 80 km, significant variations in elevation — a maximum elevation change of 574 m.
The land around Saint-Laurent-du-Maroni is covered by water (41%) and trees (34%) within 3 km, trees (86%) within 16 km, and trees (73%) and water (23%) within 80 km.
French Guiana travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- 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-Laurent-du-Maroni (5.5015°, -54.0292°, elevation 10 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. 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).