Kourou weather in October
In October, Kourou sees average daytime highs of 30°C and overnight lows near 25°C, with 49 mm of rain across 12 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 30°C through the month. The sky is clear or mostly clear about 51% 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 Kourou's 3rd-clearest and 8th-windiest month. For the whole year in context, see Kourou's year-round climate.
- Daytime high
- 30°
- 1st warmest
- Overnight low
- 25°
- 12th coldest
- Rainfall
- 49 mm
- 12 wet days
- Daylight
- 11 h 54 min
- 6:19 AM – 6:12 PM
- Cloud cover
- 45%
- 3rd clearest
- Wind
- 14 km/h
- 8th windiest
- Solar energy
- 6.08 kWh/m²
- Travel score
- 5.2
- out of 10
Temperature in October
Day-to-day highs hold fairly steady near 30°C through the month.
A typical October day in Kourou reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 30°C. Set against its neighbours, October runs on par with September and on par with 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) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 25 |
| 2 | 30 | 25 |
| 3 | 30 | 25 |
| 4 | 30 | 25 |
| 5 | 30 | 25 |
| 6 | 30 | 25 |
| 7 | 30 | 25 |
| 8 | 30 | 25 |
| 9 | 30 | 25 |
| 10 | 30 | 25 |
| 11 | 30 | 25 |
| 12 | 30 | 25 |
| 13 | 30 | 25 |
| 14 | 30 | 25 |
| 15 | 30 | 25 |
| 16 | 30 | 25 |
| 17 | 30 | 25 |
| 18 | 30 | 25 |
| 19 | 30 | 25 |
| 20 | 30 | 25 |
| 21 | 30 | 25 |
| 22 | 30 | 25 |
| 23 | 30 | 25 |
| 24 | 30 | 25 |
| 25 | 30 | 25 |
| 26 | 29 | 25 |
| 27 | 29 | 25 |
| 28 | 29 | 25 |
| 29 | 29 | 25 |
| 30 | 29 | 25 |
| 31 | 29 | 25 |
How October really feels in Kourou
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.
Kourou 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 | 27° / 24° | 236 | 26 | 11.7 | 4.1 |
| Feb | 27° / 24° | 191 | 22.5 | 11.8 | 4.2 |
| Mar | 28° / 25° | 165 | 23.8 | 12 | 4.3 |
| Apr | 28° / 25° | 236 | 25.3 | 12.1 | 4.0 |
| May | 28° / 25° | 392 | 28.9 | 12.2 | 3.6 |
| Jun | 28° / 24° | 346 | 28.7 | 12.3 | 3.4 |
| Jul | 29° / 24° | 204 | 26 | 12.3 | 3.8 |
| Aug | 29° / 25° | 90 | 16.8 | 12.2 | 4.8 |
| Sep | 29° / 25° | 40 | 10 | 12 | 5.5 |
| Oct | 30° / 25° | 49 | 12 | 11.9 | 5.2 |
| Nov | 29° / 25° | 128 | 20.4 | 11.8 | 4.2 |
| Dec | 28° / 24° | 244 | 26.9 | 11.7 | 3.8 |
Cloud cover in October
The sky is clear or mostly clear about 51% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 20% of October, with mostly cloudy or overcast conditions the remaining 28%. 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 (%) | 80 | 78 | 78 | 77 | 77 | 76 | 76 | 76 | 75 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 72 | 71 | 70 | 69 | 68 | 67 | 65 | 64 | 63 | 62 | 60 | 59 |
| Cloudier (%) | 20 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 35 | 36 | 37 | 38 | 40 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 80 | 20 |
| 2 | 78 | 22 |
| 3 | 78 | 22 |
| 4 | 77 | 23 |
| 5 | 77 | 23 |
| 6 | 76 | 24 |
| 7 | 76 | 24 |
| 8 | 76 | 24 |
| 9 | 75 | 25 |
| 10 | 74 | 26 |
| 11 | 74 | 26 |
| 12 | 74 | 26 |
| 13 | 74 | 26 |
| 14 | 74 | 26 |
| 15 | 74 | 26 |
| 16 | 74 | 26 |
| 17 | 73 | 27 |
| 18 | 73 | 27 |
| 19 | 73 | 27 |
| 20 | 72 | 28 |
| 21 | 71 | 29 |
| 22 | 70 | 30 |
| 23 | 69 | 31 |
| 24 | 68 | 32 |
| 25 | 67 | 33 |
| 26 | 65 | 35 |
| 27 | 64 | 36 |
| 28 | 63 | 37 |
| 29 | 62 | 38 |
| 30 | 60 | 40 |
| 31 | 59 | 41 |
Chance of precipitation in October
Kourou gets around 49 mm of rain over 12 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 39% and peaks near 52% 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 (%) | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 38 | 38 | 39 | 40 | 41 | 42 | 44 | 45 | 46 | 48 | 49 | 51 | 52 |
| Rain chance (%) | |
|---|---|
| 1 | 35 |
| 2 | 35 |
| 3 | 35 |
| 4 | 35 |
| 5 | 36 |
| 6 | 36 |
| 7 | 36 |
| 8 | 36 |
| 9 | 36 |
| 10 | 36 |
| 11 | 36 |
| 12 | 36 |
| 13 | 36 |
| 14 | 36 |
| 15 | 36 |
| 16 | 37 |
| 17 | 37 |
| 18 | 37 |
| 19 | 38 |
| 20 | 38 |
| 21 | 39 |
| 22 | 40 |
| 23 | 41 |
| 24 | 42 |
| 25 | 44 |
| 26 | 45 |
| 27 | 46 |
| 28 | 48 |
| 29 | 49 |
| 30 | 51 |
| 31 | 52 |
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 76% 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 (%) | 76 | 76 | 76 | 76 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 76 | 76 | 75 | 75 | 74 | 74 | 73 |
| Miserable (%) | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 26 | 26 | 27 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 76 | 24 |
| 2 | 76 | 24 |
| 3 | 76 | 24 |
| 4 | 76 | 24 |
| 5 | 77 | 23 |
| 6 | 77 | 23 |
| 7 | 77 | 23 |
| 8 | 77 | 23 |
| 9 | 77 | 23 |
| 10 | 77 | 23 |
| 11 | 77 | 23 |
| 12 | 77 | 23 |
| 13 | 77 | 23 |
| 14 | 77 | 23 |
| 15 | 77 | 23 |
| 16 | 77 | 23 |
| 17 | 77 | 23 |
| 18 | 77 | 23 |
| 19 | 77 | 23 |
| 20 | 77 | 23 |
| 21 | 77 | 23 |
| 22 | 76 | 24 |
| 23 | 76 | 24 |
| 24 | 76 | 24 |
| 25 | 76 | 24 |
| 26 | 76 | 24 |
| 27 | 75 | 25 |
| 28 | 75 | 25 |
| 29 | 74 | 26 |
| 30 | 74 | 26 |
| 31 | 73 | 27 |
Wind in October
Winds average 14 km/h in October.
Across October, daily wind ranges from about 14 km/h on the calmest days to 14 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) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 14 | light breeze |
| 2 | 14 | light breeze |
| 3 | 14 | light breeze |
| 4 | 14 | light breeze |
| 5 | 14 | light breeze |
| 6 | 14 | light breeze |
| 7 | 14 | light breeze |
| 8 | 14 | light breeze |
| 9 | 14 | light breeze |
| 10 | 14 | light breeze |
| 11 | 14 | light breeze |
| 12 | 14 | light breeze |
| 13 | 14 | light breeze |
| 14 | 14 | light breeze |
| 15 | 14 | light breeze |
| 16 | 14 | light breeze |
| 17 | 14 | light breeze |
| 18 | 14 | light breeze |
| 19 | 14 | light breeze |
| 20 | 14 | light breeze |
| 21 | 14 | light breeze |
| 22 | 14 | light breeze |
| 23 | 14 | light breeze |
| 24 | 14 | light breeze |
| 25 | 14 | light breeze |
| 26 | 14 | light breeze |
| 27 | 14 | light breeze |
| 28 | 14 | light breeze |
| 29 | 14 | light breeze |
| 30 | 14 | light breeze |
| 31 | 14 | light breeze |
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 6:21 AM to 6:20 AM, and sunset from 6:18 PM to 6:09 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 | 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 | 11.9 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 |
| Sunrise (AM) | 6:21 | 6:21 | 6:21 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:20 |
| Sunset (PM) | 6:18 | 6:18 | 6:17 | 6:17 | 6:16 | 6:16 | 6:16 | 6:15 | 6:15 | 6:14 | 6:14 | 6:14 | 6:13 | 6:13 | 6:12 | 6:12 | 6:12 | 6:12 | 6:11 | 6:11 | 6:11 | 6:10 | 6:10 | 6:10 | 6:10 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.0 | 6:21 | 6:18 |
| 2 | 12.0 | 6:21 | 6:18 |
| 3 | 11.9 | 6:21 | 6:17 |
| 4 | 11.9 | 6:20 | 6:17 |
| 5 | 11.9 | 6:20 | 6:16 |
| 6 | 11.9 | 6:20 | 6:16 |
| 7 | 11.9 | 6:20 | 6:16 |
| 8 | 11.9 | 6:20 | 6:15 |
| 9 | 11.9 | 6:20 | 6:15 |
| 10 | 11.9 | 6:20 | 6:14 |
| 11 | 11.9 | 6:19 | 6:14 |
| 12 | 11.9 | 6:19 | 6:14 |
| 13 | 11.9 | 6:19 | 6:13 |
| 14 | 11.9 | 6:19 | 6:13 |
| 15 | 11.9 | 6:19 | 6:12 |
| 16 | 11.9 | 6:19 | 6:12 |
| 17 | 11.9 | 6:19 | 6:12 |
| 18 | 11.9 | 6:19 | 6:12 |
| 19 | 11.9 | 6:19 | 6:11 |
| 20 | 11.9 | 6:19 | 6:11 |
| 21 | 11.9 | 6:19 | 6:11 |
| 22 | 11.9 | 6:19 | 6:10 |
| 23 | 11.9 | 6:19 | 6:10 |
| 24 | 11.8 | 6:19 | 6:10 |
| 25 | 11.8 | 6:19 | 6:10 |
| 26 | 11.8 | 6:19 | 6:09 |
| 27 | 11.8 | 6:19 | 6:09 |
| 28 | 11.8 | 6:19 | 6:09 |
| 29 | 11.8 | 6:19 | 6:09 |
| 30 | 11.8 | 6:19 | 6:09 |
| 31 | 11.8 | 6:20 | 6:09 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 6.08 kWh/m².
For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 6.25 kWh/m² in September across the year — October's 6.08 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) | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.8 | 5.7 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.3 | Intense |
| 2 | 6.2 | Intense |
| 3 | 6.2 | Intense |
| 4 | 6.2 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.2 | Intense |
| 7 | 6.2 | Intense |
| 8 | 6.2 | Intense |
| 9 | 6.2 | Intense |
| 10 | 6.2 | Intense |
| 11 | 6.2 | Intense |
| 12 | 6.2 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.1 | Intense |
| 15 | 6.1 | Intense |
| 16 | 6.1 | Intense |
| 17 | 6.1 | Intense |
| 18 | 6.1 | Intense |
| 19 | 6.1 | Intense |
| 20 | 6.0 | Intense |
| 21 | 6.0 | Intense |
| 22 | 6.0 | Intense |
| 23 | 6.0 | Bright |
| 24 | 6.0 | Bright |
| 25 | 5.9 | Bright |
| 26 | 5.9 | Bright |
| 27 | 5.8 | Bright |
| 28 | 5.8 | Bright |
| 29 | 5.8 | Bright |
| 30 | 5.8 | Bright |
| 31 | 5.7 | Bright |
Hazard calendar for Kourou
None of Kourou's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Kourou's rainy season runs April–July, when most of the year's rain falls.
Is October a good time to visit Kourou?
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 Kourou for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Kourou in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Kourou sees daytime highs around 30°C and nights near 25°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.
Sea temperature near Kourou 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 offshore is warmest in July at about 28°C and coldest in January near 27°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) | 27 | 27 | 27 | 27 | 28 | 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 | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | 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 Kourou 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 Kourou peaks around April 11 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 Kourou 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 Kourou is worst in February — around 28 µg/m³ PM2.5 (moderate), about 4.0× 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) | 26 | 28 | 26 | 26 | 21 | 12 | 8 | 7 | 8 | 10 | 12 | 21 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 26 | Moderate |
| Feb | 28 | Moderate |
| Mar | 26 | Moderate |
| Apr | 26 | Moderate |
| May | 21 | Moderate |
| Jun | 12 | Moderate |
| Jul | 8 | Good |
| Aug | 7 | Good |
| Sep | 8 | Good |
| Oct | 10 | Good |
| Nov | 12 | Good |
| Dec | 21 | Moderate |
Where is Kourou?
Kourou sits at 5.2°N, 52.6°W, 7 m above sea level, in French Guiana. The nearest listed city is Cayenne, 42 km away.
Topography around Kourou
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kourou.
Within 3 km, the terrain around Kourou has only modest variations in elevation — a maximum elevation change of 67 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 165 m; within 80 km, significant variations in elevation — a maximum elevation change of 403 m.
The land around Kourou is covered by water (45%) within 3 km, water (47%) and trees (34%) within 16 km, and trees (57%) and water (37%) 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 Kourou (5.1628°, -52.6427°, elevation 7 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).