Mairo Inya weather in December

In December, Mairo Inya sees average daytime highs of 21°C and overnight lows near 11°C, with 59 mm of rain across 9.5 wet days and about 12 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 25% of the time in December, and the air most often feels dry.

Daylight stretches from about 12 hours at the start of December to 12 hours by month's end. Set against the rest of the year, December is Mairo Inya's 4th-clearest and 5th-windiest month. For the whole year in context, see Mairo Inya's year-round climate.

Daytime high
21°
8th warmest
Overnight low
11°
5th coldest
Rainfall
59 mm
9.5 wet days
Daylight
12 hours
6:31 AM – 6:30 PM
Cloud cover
58%
4th clearest
Wind
8 km/h
5th windiest
Solar energy
5.91 kWh/m²
Travel score
6.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical December day in Mairo Inya reaches about 21°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 23°C. Set against its neighbours, December runs on par with November and about 1°C cooler than January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12111
22111
32111
42111
52111
62111
72111
82111
92111
102111
112111
122111
132111
142111
152111
162111
172111
182111
192111
202211
212211
222211
232211
242211
252211
262211
272211
282210
292210
302210
312210

Mairo Inya weather by month

How December compares with the rest of the year at a glance. December 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° / 10°385.8127.5
Feb24° / 10°273.9127.9
Mar24° / 11°687.1127.5
Apr23° / 12°15714.6125.9
May22° / 12°12613.1126.2
Jun21° / 12°10013.5125.8
Jul20° / 11°14618125.1
Aug20° / 11°15618.8125.0
Sep22° / 11°9411.3126.3
Oct22° / 11°15014.6125.8
Nov21° / 11°15117.5125.2
Dec21° / 11°599.5126.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 26% of December, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24357
34456
44555
54555
64654
74654
84852
94852
105050
115050
125149
135149
145248
155248
165347
175347
185446
195446
205446
215545
225545
235545
245644
255644
265644
275644
285545
295545
305644
315644

Chance of precipitation in December

Any precipitation

Mairo Inya gets around 59 mm of rain over 9.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 48% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
148
247
345
444
543
641
740
838
937
1036
1134
1233
1331
1430
1529
1628
1727
1826
1925
2025
2124
2224
2324
2423
2523
2623
2723
2822
2922
3022
3121

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
19010
29010
39010
49010
5919
6919
7928
8928
9937
10937
11946
12946
13955
14955
15955
16964
17964
18964
19964
20955
21955
22955
23955
24955
25946
26946
27946
28946
29946
30946
31946

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 hours at the start of December to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:24 AM to 6:38 AM, and sunset from 6:24 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:246:24
212.06:256:24
312.06:256:25
412.06:256:25
512.06:266:26
612.06:266:26
712.06:276:26
812.06:276:27
912.06:276:27
1012.06:286:28
1112.06:286:28
1212.06:296:29
1312.06:296:29
1412.06:306:30
1512.06:306:30
1612.06:316:30
1712.06:316:31
1812.06:326:31
1912.06:326:32
2012.06:326:32
2112.06:336:33
2212.06:336:33
2312.06:346:34
2412.06:346:34
2512.06:356:35
2612.06:356:35
2712.06:366:36
2812.06:366:36
2912.06:376:37
3012.06:376:37
3112.06:386:37

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.91 kWh/m².

For context, solar energy here swings from a low near 5.08 kWh/m² to a high of 7.08 kWh/m² in February across the year — December's 5.91 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.2Intense
316.2Intense
Planning a trip in December

Is December a good time to visit Mairo Inya?

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

6.6
Sightseeing
4th-best month of the year
4.2
Beach & pool
6th-best month of the year

December is a reasonable time to visit Mairo Inya for sightseeing.

What to pack for Mairo Inya in December

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

In December, Mairo Inya sees daytime highs around 21°C and nights near 11°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

UV index in Mairo Inya in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Mairo Inya peaks around March 16 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 16UV 17Jun 19UV 11
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar17Extreme
Apr16Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep14Extreme
Oct15Extreme
Nov14Extreme
Dec13Extreme

Air quality in Mairo Inya in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mairo Inya is worst in June — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2334 µg/m³Oct 1224 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb31Moderate
Mar28Moderate
Apr27Moderate
May28Moderate
Jun34Moderate
Jul34Moderate
Aug28Moderate
Sep25Moderate
Oct24Moderate
Nov27Moderate
Dec28Moderate
Location & terrain

Where is Mairo Inya?

Mairo Inya sits at 0.0°N, 36.4°E, 2,294 m above sea level, in Kenya. The nearest listed city is Nyahururu, 5.0 km away.

RongaiNjoroNanyuki

Topography around Mairo Inya

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

Within 3 km, the terrain around Mairo Inya has only modest variations in elevation — a maximum elevation change of 183 m around an average of 2,345 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 646 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,011 m.

The land around Mairo Inya is covered by trees (27%), shrubs (25%) and cropland (24%) within 3 km, cropland (32%), grassland (25%) and trees (23%) within 16 km, and grassland (38%) and shrubs (22%) within 80 km.

3 km
183 m
16 km
646 m
80 km
3,011 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Nyahururu 5.0 km · Upper Gilgil 30 km · Ol Kalou 33 km · Nakuru 53 km · Gilgil 60 km · Rongai 65 km · Njoro 65 km · Nanyuki 74 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 Mairo Inya (0.0254°, 36.4087°, elevation 2,294 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).