Kourou in Fall

Across fall, daytime highs hold fairly steady around 29°C.

Once humidity and wind are folded in, fall brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

The sky is clear or mostly clear about 46% of the time across fall.

Kourou gets around 218 mm of rain over 42 wet days across fall. The line is the day-by-day chance of measurable precipitation.

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

Winds average 14 km/h across fall.

Daylight runs from about 12 h 06 min in early September to 11 h 42 min by late November. The lit band spans sunrise to sunset each day.

Average shortwave solar energy reaching the ground each day across fall, about 5.9 kWh/m².

None of Kourou's seasonal hazards peak in fall. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

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

The nearest coast averages about 28°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.

Clear-sky midday UV across fall averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.

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.

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