Mariakani weather in September

In September, Mariakani sees average daytime highs of 29°C and overnight lows near 21°C, with 29 mm of rain across 10.4 wet days and about 12 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 47% 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 Mariakani's 1st-clearest and 5th-windiest month. For the whole year in context, see Mariakani's year-round climate.

Daytime high
29°
9th warmest
Overnight low
21°
3rd coldest
Rainfall
29 mm
10.4 wet days
Daylight
12 hours
6:17 AM – 6:16 PM
Cloud cover
45%
1st clearest
Wind
14 km/h
5th windiest
Solar energy
5.63 kWh/m²
Travel score
5.7
out of 10

Mariakani is town in Kilifi, Kenya.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical September day in Mariakani 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 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12821
22821
32821
42821
52821
62821
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
192921
202921
212921
222921
232921
242921
252921
262922
272922
282922
292922
302922

How September really feels in Mariakani

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Mariakani 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°326.212.24.7
Feb32° / 24°194.712.14.3
Mar32° / 24°5914.9123.4
Apr31° / 24°8319.611.93.5
May29° / 23°10716.211.84.7
Jun28° / 22°338.211.86.2
Jul28° / 21°257.611.86.7
Aug28° / 21°279.811.96.4
Sep29° / 21°2910.4125.7
Oct30° / 22°6213.112.14.8
Nov30° / 23°7918.912.23.8
Dec31° / 23°7518.112.23.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 30% of September, with mostly cloudy or overcast conditions the remaining 22%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27624
37822
47822
57921
67921
77921
87921
98020
108119
118020
127921
137921
147921
157921
167921
177822
187822
197822
207822
217723
227723
237723
247624
257624
267525
277525
287525
297525
307426

Chance of precipitation in September

Any precipitation

Mariakani gets around 29 mm of rain over 10.4 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 34% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
134
234
334
434
534
634
734
834
934
1034
1133
1233
1333
1433
1533
1633
1733
1833
1934
2034
2134
2234
2335
2435
2536
2636
2737
2837
2937
3038

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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 84% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
16895
26886
35896
45896
55896
65887
74897
84897
94897
104897
114888
124888
134888
144879
154879
1638710
1738710
1838611
1938512
2038413
2138314
2238215
2338116
2437918
2537819
2637621
2727622
2827424
2927226
3027028

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in September

DaylightNight

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 6:24 AM to 6:11 AM, and sunset from 6:20 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:246:20
211.96:246:19
311.96:236:19
411.96:236:19
511.96:226:19
611.96:226:18
711.96:216:18
812.06:216:18
912.06:206:18
1012.06:206:17
1112.06:196:17
1212.06:196:17
1312.06:186:17
1412.06:186:16
1512.06:186:16
1612.06:176:16
1712.06:176:16
1812.06:166:15
1912.06:166:15
2012.06:156:15
2112.06:156:14
2212.06:146:14
2312.06:146:14
2412.06:136:14
2512.06:136:13
2612.06:126:13
2712.06:126:13
2812.06:116:13
2912.06:116:13
3012.06:116:12

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.63 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 6.33 kWh/m² in February across the year — September's 5.63 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Is September a good time to visit Mariakani?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.7
Sightseeing
4th-best month of the year
7.1
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Mariakani for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Mariakani in September

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

In September, Mariakani sees daytime highs around 29°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Mariakani in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 34 km away) is warmest in April at about 29°C and coldest in August near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Warm
Mar29Tropical
Apr29Tropical
May28Warm
Jun27Warm
Jul26Warm
Aug25Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec28Tropical

UV index in Mariakani in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mariakani peaks around March 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 19UV 15Jun 18UV 10
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul10Extreme
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Mariakani in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mariakani is worst in December — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateDec 2421 µg/m³Oct 1313 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb19Moderate
Mar17Moderate
Apr14Moderate
May14Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep14Moderate
Oct13Moderate
Nov15Moderate
Dec21Moderate
Location & terrain

Where is Mariakani?

Mariakani sits at 3.9°S, 39.5°E, 206 m above sea level, in Kenya. The nearest listed city is Mazeras, 14 km away.

Topography around Mariakani

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

Within 3 km, the terrain around Mariakani has only modest variations in elevation — a maximum elevation change of 67 m around an average of 190 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 312 m; within 80 km, large variations in elevation — a maximum elevation change of 959 m.

The land around Mariakani is covered by grassland (43%) and shrubs (41%) within 3 km, grassland (58%) and shrubs (31%) within 16 km, and shrubs (36%), grassland (26%) and water (23%) within 80 km.

3 km
67 m
16 km
312 m
80 km
959 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Mazeras 14 km · Jomvu 20 km · Mombasa 30 km · Mtwapa 32 km · Matuga 36 km · Diani Beach 48 km · Ukunda 49 km · Kilifi 49 km

Kenya travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type G
240 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$2,363
2025
Happiness
4.7 / 10
World Happiness, 2025
Homicide rate
4.9
per 100k, 2022
Road deaths
28.3
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 593
Religion
Christian 86%Muslim 11%other 2%none 2%

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 Mariakani (-3.8626°, 39.4746°, elevation 206 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).