Nkayi weather in September
In September, Nkayi sees average daytime highs of 29°C and overnight lows near 21°C, with 11 mm of rain across 3.2 wet days and about 12 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.
Highs climb over the month, from about 28°C in the first days to 30°C by the end. The sky is clear or mostly clear about 0% of the time in September, and the air most often feels muggy.
Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Nkayi's 11th-clearest and 1st-windiest month. For the whole year in context, see Nkayi's year-round climate.
- Daytime high
- 29°
- 9th warmest
- Overnight low
- 21°
- 4th coldest
- Rainfall
- 11 mm
- 3.2 wet days
- Daylight
- 12 hours
- 6:02 AM – 6:01 PM
- Cloud cover
- 87%
- 11th clearest
- Wind
- 7 km/h
- 1st windiest
- Solar energy
- 3.63 kWh/m²
- Travel score
- 5.6
- out of 10
Nkayi is city in Bouenza department, Republic of Congo.
- Density
- 6,867/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs climb over the month, from about 28°C in the first days to 30°C by the end.
A typical September day in Nkayi reaches about 29°C in the afternoon and slips back to 21°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 20 |
| 2 | 28 | 20 |
| 3 | 29 | 20 |
| 4 | 29 | 21 |
| 5 | 29 | 21 |
| 6 | 29 | 21 |
| 7 | 29 | 21 |
| 8 | 29 | 21 |
| 9 | 29 | 21 |
| 10 | 29 | 21 |
| 11 | 29 | 21 |
| 12 | 29 | 21 |
| 13 | 29 | 21 |
| 14 | 29 | 21 |
| 15 | 29 | 21 |
| 16 | 29 | 21 |
| 17 | 29 | 21 |
| 18 | 29 | 21 |
| 19 | 29 | 21 |
| 20 | 29 | 21 |
| 21 | 30 | 22 |
| 22 | 30 | 22 |
| 23 | 30 | 22 |
| 24 | 30 | 22 |
| 25 | 30 | 22 |
| 26 | 30 | 22 |
| 27 | 30 | 22 |
| 28 | 30 | 22 |
| 29 | 30 | 22 |
| 30 | 30 | 22 |
How September really feels in Nkayi
Once humidity and wind are folded in, September averages 2 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Nkayi weather by month
How September compares with the rest of the year at a glance. September is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 23° | 135 | 22.6 | 12.2 | 3.2 |
| Feb | 31° / 23° | 118 | 18.8 | 12.1 | 3.1 |
| Mar | 32° / 23° | 125 | 20.8 | 12 | 3.0 |
| Apr | 31° / 23° | 150 | 21.5 | 11.9 | 3.0 |
| May | 31° / 23° | 69 | 13.9 | 11.8 | 4.2 |
| Jun | 28° / 21° | 3 | 0.6 | 11.8 | 6.7 |
| Jul | 28° / 19° | 1 | 0.2 | 11.8 | 7.3 |
| Aug | 28° / 20° | 3 | 0.7 | 11.9 | 6.8 |
| Sep | 29° / 21° | 11 | 3.2 | 12 | 5.6 |
| Oct | 31° / 23° | 83 | 15.2 | 12.1 | 3.8 |
| Nov | 31° / 23° | 158 | 24.3 | 12.2 | 3.0 |
| Dec | 30° / 23° | 175 | 25.1 | 12.2 | 3.0 |
Cloud cover in September
The sky is clear or mostly clear about 0% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 4% of September, with mostly cloudy or overcast conditions the remaining 96%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 6 | 6 | 7 | 7 | 8 |
| Cloudier (%) | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 96 | 96 | 96 | 95 | 95 | 95 | 95 | 95 | 94 | 94 | 93 | 94 | 94 | 93 | 93 | 92 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 3 | 97 |
| 2 | 3 | 97 |
| 3 | 3 | 97 |
| 4 | 3 | 97 |
| 5 | 3 | 97 |
| 6 | 3 | 97 |
| 7 | 3 | 97 |
| 8 | 3 | 97 |
| 9 | 3 | 97 |
| 10 | 3 | 97 |
| 11 | 3 | 97 |
| 12 | 3 | 97 |
| 13 | 3 | 97 |
| 14 | 3 | 97 |
| 15 | 4 | 96 |
| 16 | 4 | 96 |
| 17 | 4 | 96 |
| 18 | 5 | 95 |
| 19 | 5 | 95 |
| 20 | 5 | 95 |
| 21 | 5 | 95 |
| 22 | 5 | 95 |
| 23 | 6 | 94 |
| 24 | 6 | 94 |
| 25 | 7 | 93 |
| 26 | 6 | 94 |
| 27 | 6 | 94 |
| 28 | 7 | 93 |
| 29 | 7 | 93 |
| 30 | 8 | 92 |
Chance of precipitation in September
Nkayi gets around 11 mm of rain over 3.2 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 10% and peaks near 18% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 4 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 15 | 15 | 15 | 16 | 17 | 18 |
| Rain chance (%) | |
|---|---|
| 1 | 4 |
| 2 | 5 |
| 3 | 5 |
| 4 | 5 |
| 5 | 5 |
| 6 | 6 |
| 7 | 6 |
| 8 | 7 |
| 9 | 7 |
| 10 | 8 |
| 11 | 8 |
| 12 | 9 |
| 13 | 9 |
| 14 | 10 |
| 15 | 11 |
| 16 | 11 |
| 17 | 11 |
| 18 | 12 |
| 19 | 12 |
| 20 | 13 |
| 21 | 13 |
| 22 | 13 |
| 23 | 14 |
| 24 | 14 |
| 25 | 15 |
| 26 | 15 |
| 27 | 15 |
| 28 | 16 |
| 29 | 17 |
| 30 | 18 |
Humidity in September
Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the muggy band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 94% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 18 | 16 | 15 | 14 | 12 | 11 | 10 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
| Muggy (%) | 82 | 84 | 85 | 86 | 88 | 89 | 90 | 91 | 92 | 92 | 93 | 93 | 93 | 93 | 94 | 94 | 94 | 94 | 93 | 93 | 93 | 92 | 92 | 91 | 90 | 90 | 89 | 87 | 86 | 84 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 13 | 15 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 18 | 82 | 0 |
| 2 | 16 | 84 | 0 |
| 3 | 15 | 85 | 0 |
| 4 | 14 | 86 | 0 |
| 5 | 12 | 88 | 0 |
| 6 | 11 | 89 | 0 |
| 7 | 10 | 90 | 0 |
| 8 | 9 | 91 | 0 |
| 9 | 8 | 92 | 0 |
| 10 | 8 | 92 | 0 |
| 11 | 7 | 93 | 0 |
| 12 | 7 | 93 | 0 |
| 13 | 6 | 93 | 1 |
| 14 | 6 | 93 | 1 |
| 15 | 5 | 94 | 1 |
| 16 | 5 | 94 | 1 |
| 17 | 4 | 94 | 2 |
| 18 | 4 | 94 | 2 |
| 19 | 4 | 93 | 3 |
| 20 | 3 | 93 | 4 |
| 21 | 3 | 93 | 4 |
| 22 | 3 | 92 | 5 |
| 23 | 2 | 92 | 6 |
| 24 | 2 | 91 | 7 |
| 25 | 2 | 90 | 8 |
| 26 | 1 | 90 | 9 |
| 27 | 1 | 89 | 10 |
| 28 | 1 | 87 | 12 |
| 29 | 1 | 86 | 13 |
| 30 | 1 | 84 | 15 |
Wind in September
Winds average 7 km/h in September, the windiest month of the year.
Across September, daily wind ranges from about 7 km/h on the calmest days to 7 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| 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 |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
Sunrise & sunset in September
Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over September. Sunrise moves from 6:09 AM to 5:55 AM, and sunset from 6:04 PM to 5:57 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunrise (AM) | 6:09 | 6:09 | 6:08 | 6:08 | 6:07 | 6:07 | 6:06 | 6:06 | 6:05 | 6:05 | 6:04 | 6:04 | 6:03 | 6:03 | 6:02 | 6:02 | 6:01 | 6:01 | 6:00 | 6:00 | 5:59 | 5:59 | 5:58 | 5:58 | 5:57 | 5:57 | 5:57 | 5:56 | 5:56 | 5:55 |
| Sunset (PM) | 6:04 | 6:04 | 6:04 | 6:03 | 6:03 | 6:03 | 6:03 | 6:03 | 6:02 | 6:02 | 6:02 | 6:02 | 6:01 | 6:01 | 6:01 | 6:01 | 6:00 | 6:00 | 6:00 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:58 | 5:58 | 5:58 | 5:58 | 5:57 | 5:57 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.9 | 6:09 | 6:04 |
| 2 | 11.9 | 6:09 | 6:04 |
| 3 | 11.9 | 6:08 | 6:04 |
| 4 | 11.9 | 6:08 | 6:03 |
| 5 | 11.9 | 6:07 | 6:03 |
| 6 | 11.9 | 6:07 | 6:03 |
| 7 | 11.9 | 6:06 | 6:03 |
| 8 | 11.9 | 6:06 | 6:03 |
| 9 | 12.0 | 6:05 | 6:02 |
| 10 | 12.0 | 6:05 | 6:02 |
| 11 | 12.0 | 6:04 | 6:02 |
| 12 | 12.0 | 6:04 | 6:02 |
| 13 | 12.0 | 6:03 | 6:01 |
| 14 | 12.0 | 6:03 | 6:01 |
| 15 | 12.0 | 6:02 | 6:01 |
| 16 | 12.0 | 6:02 | 6:01 |
| 17 | 12.0 | 6:01 | 6:00 |
| 18 | 12.0 | 6:01 | 6:00 |
| 19 | 12.0 | 6:00 | 6:00 |
| 20 | 12.0 | 6:00 | 5:59 |
| 21 | 12.0 | 5:59 | 5:59 |
| 22 | 12.0 | 5:59 | 5:59 |
| 23 | 12.0 | 5:58 | 5:59 |
| 24 | 12.0 | 5:58 | 5:59 |
| 25 | 12.0 | 5:57 | 5:58 |
| 26 | 12.0 | 5:57 | 5:58 |
| 27 | 12.0 | 5:57 | 5:58 |
| 28 | 12.0 | 5:56 | 5:58 |
| 29 | 12.0 | 5:56 | 5:57 |
| 30 | 12.0 | 5:55 | 5:57 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 3.63 kWh/m².
For context, solar energy here swings from a low near 3.56 kWh/m² to a high of 5 kWh/m² in March across the year — September's 3.63 kWh/m² sits near the bottom.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.8 | 3.8 | 3.8 | 3.8 | 3.9 | 3.9 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.5 | Moderate |
| 2 | 3.5 | Moderate |
| 3 | 3.5 | Moderate |
| 4 | 3.5 | Moderate |
| 5 | 3.5 | Moderate |
| 6 | 3.6 | Moderate |
| 7 | 3.6 | Moderate |
| 8 | 3.6 | Moderate |
| 9 | 3.6 | Moderate |
| 10 | 3.6 | Moderate |
| 11 | 3.6 | Moderate |
| 12 | 3.6 | Moderate |
| 13 | 3.6 | Moderate |
| 14 | 3.6 | Moderate |
| 15 | 3.6 | Moderate |
| 16 | 3.6 | Moderate |
| 17 | 3.6 | Moderate |
| 18 | 3.6 | Moderate |
| 19 | 3.7 | Moderate |
| 20 | 3.7 | Moderate |
| 21 | 3.7 | Moderate |
| 22 | 3.7 | Moderate |
| 23 | 3.7 | Moderate |
| 24 | 3.7 | Moderate |
| 25 | 3.8 | Moderate |
| 26 | 3.8 | Moderate |
| 27 | 3.8 | Moderate |
| 28 | 3.8 | Moderate |
| 29 | 3.9 | Moderate |
| 30 | 3.9 | Moderate |
Hazard calendar for Nkayi
None of Nkayi's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Nkayi's rainy season runs October–April, when most of the year's rain falls.
Is September a good time to visit Nkayi?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Nkayi for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Nkayi in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Nkayi sees daytime highs around 29°C and nights near 21°C. Pack light clothes. About 3 days see rain.
UV index in Nkayi in September
Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Nkayi peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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) | 14 | 13 | 15 | 13 | 9 | 6 | 7 | 7 | 11 | 14 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | High | High | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 9 | Very high |
| Jun | 6 | High |
| Jul | 7 | High |
| Aug | 7 | High |
| Sep | 11 | Extreme |
| Oct | 14 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Extreme |
Air quality in Nkayi in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Nkayi is worst in July — around 68 µg/m³ PM2.5 (unhealthy), about 4.9× the cleanest month (November, 14 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) | 18 | 21 | 18 | 17 | 26 | 41 | 68 | 61 | 44 | 21 | 14 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 21 | Moderate |
| Mar | 18 | Moderate |
| Apr | 17 | Moderate |
| May | 26 | Moderate |
| Jun | 41 | Poor |
| Jul | 68 | Unhealthy |
| Aug | 61 | Unhealthy |
| Sep | 44 | Poor |
| Oct | 21 | Moderate |
| Nov | 14 | Moderate |
| Dec | 16 | Moderate |
Where is Nkayi?
Nkayi sits at 4.2°S, 13.3°E, 181 m above sea level, in Republic of the Congo. The nearest listed city is Kayes, 2.0 km away.
Topography around Nkayi
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nkayi.
Within 3 km, the terrain around Nkayi has only modest variations in elevation — a maximum elevation change of 80 m around an average of 158 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 311 m; within 80 km, large variations in elevation — a maximum elevation change of 797 m.
The land around Nkayi is covered by grassland (42%) and artificial surfaces (26%) within 3 km, grassland (71%) within 16 km, and grassland (53%) and trees (45%) within 80 km.
Republic of the Congo travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 35% of US
- price level, 2025
- GDP per capita
- $2,515
- 2025
- Happiness
- 4.5 / 10
- World Happiness, 2025
- Safe drinking water
- 46%
- of population, 2021
- Road deaths
- 29.7
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- Religion
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 Nkayi (-4.184°, 13.2859°, elevation 181 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. 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).