Naivasha weather in September

In September, Naivasha sees average daytime highs of 20°C and overnight lows near 10°C, with 53 mm of rain across 11.1 wet days and about 12 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 21°C by the end. The sky is clear or mostly clear about 16% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Naivasha's 5th-clearest and 2nd-windiest month. For the whole year in context, see Naivasha's year-round climate.

Daytime high
20°
8th warmest
Overnight low
10°
2nd coldest
Rainfall
53 mm
11.1 wet days
Daylight
12 hours
6:29 AM – 6:28 PM
Cloud cover
63%
5th clearest
Wind
7 km/h
2nd windiest
Solar energy
5.85 kWh/m²
Travel score
6.0
out of 10

Naivasha is city in Kenya.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 21°C by the end.

A typical September day in Naivasha reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 22°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11910
21910
31910
41910
51910
61910
71910
81910
92010
102010
112010
122010
132010
142010
152010
162010
172010
182010
192010
202010
212010
222010
232010
242110
252110
262110
272110
282110
292110
302110

Naivasha weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 11°829126.9
Feb24° / 11°616.4127.3
Mar23° / 12°12111.8126.7
Apr21° / 13°18120.4124.8
May20° / 12°13019.1124.9
Jun19° / 11°7013.9125.2
Jul18° / 10°3610.2125.6
Aug19° / 10°5011.1125.6
Sep20° / 10°5311.1126.0
Oct21° / 11°8614.7125.6
Nov21° / 12°16120.7124.7
Dec21° / 11°11912.9126.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 25% of September, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12971
23169
33169
43268
53367
63565
73664
83763
93862
103961
114159
124258
134357
144456
154456
164555
174555
184654
194654
204654
214654
224654
234654
244654
254654
264654
274555
284555
294555
304456

Chance of precipitation in September

Any precipitation

Naivasha gets around 53 mm of rain over 11.1 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 37% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
142
242
342
441
541
640
739
839
938
1037
1136
1236
1335
1434
1534
1634
1734
1834
1934
2034
2134
2235
2335
2435
2535
2635
2735
2836
2936
3036

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
8991
9991
10991
11991
12991
13991
14982
15982
16982
17982
18982
19982
20982
21982
22982
23982
24982
25982
26982
27982
28982
29982
30982

Wind in September

Winds average 7 km/h in September.

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.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours 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 0 minutes over September. Sunrise moves from 6:34 AM to 6:23 AM, and sunset from 6:34 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:346:34
212.06:346:33
312.06:346:33
412.06:336:33
512.06:336:32
612.06:336:32
712.06:326:32
812.06:326:31
912.06:316:31
1012.06:316:31
1112.06:316:30
1212.06:306:30
1312.06:306:30
1412.06:296:29
1512.06:296:29
1612.06:296:28
1712.06:286:28
1812.06:286:28
1912.06:286:27
2012.06:276:27
2112.06:276:27
2212.06:266:26
2312.06:266:26
2412.06:266:26
2512.06:256:25
2612.06:256:25
2712.06:246:25
2812.06:246:24
2912.06:246:24
3012.06:236:24

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.85 kWh/m².

For context, solar energy here swings from a low near 4.35 kWh/m² to a high of 6.84 kWh/m² in February across the year — September's 5.85 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.5Bright
85.5Bright
95.6Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.9Bright
155.9Bright
166.0Bright
176.0Bright
186.0Intense
196.0Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Is September a good time to visit Naivasha?

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

6.0
Sightseeing
5th-best month of the year
3.1
Beach & pool
7th-best month of the year

September is a reasonable time to visit Naivasha for sightseeing.

What to pack for Naivasha in September

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

In September, Naivasha sees daytime highs around 20°C and nights near 10°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Naivasha in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Naivasha peaks around March 15 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 15UV 17Jun 19UV 11
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar17Extreme
Apr16Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep14Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme

Air quality in Naivasha 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 Naivasha is worst in June — around 65 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJun 1864 µg/m³Sep 2348 µg/m³
PM2.5 (µg/m³)Level
Jan62Unhealthy
Feb59Unhealthy
Mar56Unhealthy
Apr56Unhealthy
May57Unhealthy
Jun65Unhealthy
Jul60Unhealthy
Aug51Poor
Sep48Poor
Oct48Poor
Nov60Unhealthy
Dec64Unhealthy
Location & terrain

Where is Naivasha?

Naivasha sits at 0.7°S, 36.4°E, 1,902 m above sea level, in Kenya. The nearest listed city is Gilgil, 27 km away.

Topography around Naivasha

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

Within 3 km, the terrain around Naivasha has only modest variations in elevation — a maximum elevation change of 196 m around an average of 1,930 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 756 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,900 m.

The land around Naivasha is covered by grassland (29%) and artificial surfaces (21%) within 3 km, grassland (32%) and cropland (20%) within 16 km, and trees (30%), grassland (27%) and shrubs (21%) within 80 km.

3 km
196 m
16 km
756 m
80 km
2,900 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Gilgil 27 km · Mai 34 km · Maai Mahiu 35 km · Ol Kalou 50 km · Limuru 50 km · Githunguri 54 km · Upper Gilgil 59 km · Nakuru 60 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 Naivasha (-0.7138°, 36.4326°, elevation 1,902 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).