Katoro weather in December

In December, Katoro sees average daytime highs of 27°C and overnight lows near 18°C, with 201 mm of rain across 25.1 wet days and about 12.2 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 8% of the time in December, and the air most often feels humid.

Daylight stretches from about 12 h 12 min at the start of December to 12 h 12 min by month's end. Set against the rest of the year, December is Katoro's 10th-clearest and 12th-windiest month. For the whole year in context, see Katoro's year-round climate.

Daytime high: 27°; 11th warmest
Overnight low: 18°; 2nd coldest
Rainfall: 201 mm; 25.1 wet days
Daylight: 12 h 12 min; 6:43 AM – 6:54 PM
Cloud cover: 75%; 10th clearest
Wind: 5 km/h; 12th windiest
Solar energy: 5.3 kWh/m²
Travel score: 4.2; out of 10

Katoro is city in Geita, Tanzania.

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

← November Katoro year-round climate January →Best places to visit in December

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical December day in Katoro reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, December runs on par with November and on par with January.

	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	31
Avg high (°C)	27	27	27	27	26	26	26	26	26	26	26	26	26	26	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27
Avg low (°C)	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18

	Avg high (°C)	Avg low (°C)
1	27	18
2	27	18
3	27	18
4	27	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	27	18
16	27	18
17	27	18
18	27	18
19	27	18
20	27	18
21	27	18
22	27	18
23	27	18
24	27	18
25	27	18
26	27	18
27	27	18
28	27	18
29	27	18
30	27	18
31	27	18

Katoro weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	27° / 18°	139	21.4	12.2	4.7
Feb	28° / 18°	97	16.3	12.1	5.0
Mar	28° / 19°	162	20.8	12	4.7
Apr	27° / 18°	177	20	11.9	4.7
May	28° / 19°	58	8.6	11.9	6.3
Jun	29° / 18°	10	2.1	11.8	6.6
Jul	29° / 18°	6	1	11.8	6.6
Aug	29° / 19°	29	4.5	11.9	6.0
Sep	29° / 19°	73	10.4	12	5.3
Oct	28° / 19°	146	18.9	12.1	4.7
Nov	27° / 18°	232	25.8	12.1	4.0
Dec	27° / 18°	201	25.1	12.2	4.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 77%.

	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	31
Clearer (%)	19	19	19	19	19	19	20	20	21	21	22	23	24	24	24	26	26	26	26	25	25	25	26	26	26	26	26	26	26	27	27
Cloudier (%)	81	81	81	81	81	81	80	80	79	79	78	77	76	76	76	74	74	74	74	75	75	75	74	74	74	74	74	74	74	73	73

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	19	81
5	19	81
6	19	81
7	20	80
8	20	80
9	21	79
10	21	79
11	22	78
12	23	77
13	24	76
14	24	76
15	24	76
16	26	74
17	26	74
18	26	74
19	26	74
20	25	75
21	25	75
22	25	75
23	26	74
24	26	74
25	26	74
26	26	74
27	26	74
28	26	74
29	26	74
30	27	73
31	27	73

Chance of precipitation in December

Any precipitation

Katoro gets around 201 mm of rain over 25.1 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 81% and peaks near 87% on the wettest days. The odds ease 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	31
Rain chance (%)	87	87	87	87	87	87	86	86	85	85	84	83	83	82	81	80	80	79	78	78	78	77	77	76	76	76	75	75	75	74	74

	Rain chance (%)
1	87
2	87
3	87
4	87
5	87
6	87
7	86
8	86
9	85
10	85
11	84
12	83
13	83
14	82
15	81
16	80
17	80
18	79
19	78
20	78
21	78
22	77
23	77
24	76
25	76
26	76
27	75
28	75
29	75
30	74
31	74

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 30% 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	31
Humid (%)	64	64	65	65	65	66	66	67	67	68	69	69	70	71	71	72	72	73	73	73	73	73	73	72	72	72	72	72	71	71	71
Muggy (%)	36	36	35	35	35	34	34	33	33	32	31	31	30	29	29	28	28	27	27	27	27	27	27	28	28	28	28	28	29	29	29

	Humid (%)	Muggy (%)
1	64	36
2	64	36
3	65	35
4	65	35
5	65	35
6	66	34
7	66	34
8	67	33
9	67	33
10	68	32
11	69	31
12	69	31
13	70	30
14	71	29
15	71	29
16	72	28
17	72	28
18	73	27
19	73	27
20	73	27
21	73	27
22	73	27
23	73	27
24	72	28
25	72	28
26	72	28
27	72	28
28	72	28
29	71	29
30	71	29
31	71	29

Wind in December

Winds average 5 km/h in December, the calmest month.

Across December, daily wind ranges from about 5 km/h on the calmest days to 6 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	31
Wind speed (km/h)	6	6	6	6	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6
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	calm

	Wind speed (km/h)	Feels
1	6	calm
2	6	calm
3	6	calm
4	6	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm
31	6	calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 6:37 AM to 6:50 AM, and sunset from 6:47 PM to 7:01 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	31
Daylight (h)	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2	12.2
Sunrise (AM)	6:37	6:38	6:38	6:38	6:39	6:39	6:39	6:40	6:40	6:41	6:41	6:41	6:42	6:42	6:43	6:43	6:44	6:44	6:45	6:45	6:46	6:46	6:47	6:47	6:47	6:48	6:48	6:49	6:49	6:50	6:50
Sunset (PM)	6:47	6:47	6:48	6:48	6:49	6:49	6:49	6:50	6:50	6:51	6:51	6:52	6:52	6:53	6:53	6:54	6:54	6:55	6:55	6:56	6:56	6:56	6:57	6:57	6:58	6:58	6:59	6:59	7:00	7:00	7:01

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.2	6:37	6:47
2	12.2	6:38	6:47
3	12.2	6:38	6:48
4	12.2	6:38	6:48
5	12.2	6:39	6:49
6	12.2	6:39	6:49
7	12.2	6:39	6:49
8	12.2	6:40	6:50
9	12.2	6:40	6:50
10	12.2	6:41	6:51
11	12.2	6:41	6:51
12	12.2	6:41	6:52
13	12.2	6:42	6:52
14	12.2	6:42	6:53
15	12.2	6:43	6:53
16	12.2	6:43	6:54
17	12.2	6:44	6:54
18	12.2	6:44	6:55
19	12.2	6:45	6:55
20	12.2	6:45	6:56
21	12.2	6:46	6:56
22	12.2	6:46	6:56
23	12.2	6:47	6:57
24	12.2	6:47	6:57
25	12.2	6:47	6:58
26	12.2	6:48	6:58
27	12.2	6:48	6:59
28	12.2	6:49	6:59
29	12.2	6:49	7:00
30	12.2	6:50	7:00
31	12.2	6:50	7:01

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.3 kWh/m².

For context, solar energy here swings from a low near 5.24 kWh/m² to a high of 6.15 kWh/m² in September across the year — December's 5.3 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	31
Solar energy (kWh/m²)	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.5	5.5	5.5	5.5
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.2	Bright
2	5.2	Bright
3	5.2	Bright
4	5.2	Bright
5	5.2	Bright
6	5.2	Bright
7	5.2	Bright
8	5.2	Bright
9	5.2	Bright
10	5.2	Bright
11	5.3	Bright
12	5.3	Bright
13	5.3	Bright
14	5.3	Bright
15	5.3	Bright
16	5.3	Bright
17	5.3	Bright
18	5.3	Bright
19	5.3	Bright
20	5.3	Bright
21	5.4	Bright
22	5.4	Bright
23	5.4	Bright
24	5.4	Bright
25	5.4	Bright
26	5.4	Bright
27	5.4	Bright
28	5.5	Bright
29	5.5	Bright
30	5.5	Bright
31	5.5	Bright

Planning a trip in December

Hazard calendar for Katoro

In seasonPeak

In December, Katoro sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Katoro's rainy season runs October–January, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit Katoro?

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

4.2

Sightseeing

11th-best month of the year

4.2

Beach & pool

11th-best month of the year

December is a reasonable time to visit Katoro for sightseeing.

What to pack for Katoro in December

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

In December, Katoro sees daytime highs around 27°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 25 days see rain.

rain gearlight clothessun protection

UV index in Katoro in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Katoro peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (extreme).

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)	13	15	16	15	12	10	11	11	13	14	13	11
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	13	Extreme
Feb	15	Extreme
Mar	16	Extreme
Apr	15	Extreme
May	12	Extreme
Jun	10	Extreme
Jul	11	Extreme
Aug	11	Extreme
Sep	13	Extreme
Oct	14	Extreme
Nov	13	Extreme
Dec	11	Extreme

Air quality in Katoro 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 Katoro is worst in January — around 23 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (October, 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)	23	21	17	15	15	15	15	17	17	14	16	18
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	23	Moderate
Feb	21	Moderate
Mar	17	Moderate
Apr	15	Moderate
May	15	Moderate
Jun	15	Moderate
Jul	15	Moderate
Aug	17	Moderate
Sep	17	Moderate
Oct	14	Moderate
Nov	16	Moderate
Dec	18	Moderate

Location & terrain

Where is Katoro?

Katoro sits at 3.0°S, 31.9°E, 1,297 m above sea level, in Tanzania. The nearest listed city is Buseresere, 8.0 km away.

Topography around Katoro

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

Within 3 km, the terrain around Katoro has only modest variations in elevation — a maximum elevation change of 146 m around an average of 1,288 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 251 m; within 80 km, large variations in elevation — a maximum elevation change of 702 m.

The land around Katoro is covered by artificial surfaces (44%) and cropland (26%) within 3 km, cropland (64%) within 16 km, and cropland (53%) within 80 km.

3 km

146 m

artificial surfaces 44%

16 km

251 m

cropland 64%

80 km

702 m

cropland 53%

treesshrubsgrasslandcroplandartificial surfaceswater

← November Katoro year-round climate January →Best places to visit in December

December weather nearby: Buseresere 8.0 km · Geita 36 km · Chato 44 km · Mhalamba 47 km · Ushirombo 55 km · Uyovu 55 km · Kasamwa 58 km · Diobahika 59 km

Tanzania travel facts

Travel advisory: Level 3; Reconsider Travel
Power plugs: Type D / G; 230 V · 50 Hz
Prices: ≈ 29% of US; price level, 2025
GDP per capita: $1,319; 2025
Happiness: 3.9 / 10; World Happiness, 2025
Safe drinking water: 31%; of population, 2024
Homicide rate: 3.7; per 100k, 2020
Road deaths: 31.1; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Low; EF EPI 479
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 Katoro (-2.9998°, 31.9326°, elevation 1,297 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).

	Avg high (°C)	Avg low (°C)
1	27	18
2	27	18
3	27	18
4	27	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	27	18
16	27	18
17	27	18
18	27	18
19	27	18
20	27	18
21	27	18
22	27	18
23	27	18
24	27	18
25	27	18
26	27	18
27	27	18
28	27	18
29	27	18
30	27	18
31	27	18

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	19	81
5	19	81
6	19	81
7	20	80
8	20	80
9	21	79
10	21	79
11	22	78
12	23	77
13	24	76
14	24	76
15	24	76
16	26	74
17	26	74
18	26	74
19	26	74
20	25	75
21	25	75
22	25	75
23	26	74
24	26	74
25	26	74
26	26	74
27	26	74
28	26	74
29	26	74
30	27	73
31	27	73

	Rain chance (%)
1	87
2	87
3	87
4	87
5	87
6	87
7	86
8	86
9	85
10	85
11	84
12	83
13	83
14	82
15	81
16	80
17	80
18	79
19	78
20	78
21	78
22	77
23	77
24	76
25	76
26	76
27	75
28	75
29	75
30	74
31	74

	Humid (%)	Muggy (%)
1	64	36
2	64	36
3	65	35
4	65	35
5	65	35
6	66	34
7	66	34
8	67	33
9	67	33
10	68	32
11	69	31
12	69	31
13	70	30
14	71	29
15	71	29
16	72	28
17	72	28
18	73	27
19	73	27
20	73	27
21	73	27
22	73	27
23	73	27
24	72	28
25	72	28
26	72	28
27	72	28
28	72	28
29	71	29
30	71	29
31	71	29

	Avg high (°C)	Avg low (°C)
1	27	18
2	27	18
3	27	18
4	27	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	27	18
16	27	18
17	27	18
18	27	18
19	27	18
20	27	18
21	27	18
22	27	18
23	27	18
24	27	18
25	27	18
26	27	18
27	27	18
28	27	18
29	27	18
30	27	18
31	27	18

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	19	81
5	19	81
6	19	81
7	20	80
8	20	80
9	21	79
10	21	79
11	22	78
12	23	77
13	24	76
14	24	76
15	24	76
16	26	74
17	26	74
18	26	74
19	26	74
20	25	75
21	25	75
22	25	75
23	26	74
24	26	74
25	26	74
26	26	74
27	26	74
28	26	74
29	26	74
30	27	73
31	27	73

	Rain chance (%)
1	87
2	87
3	87
4	87
5	87
6	87
7	86
8	86
9	85
10	85
11	84
12	83
13	83
14	82
15	81
16	80
17	80
18	79
19	78
20	78
21	78
22	77
23	77
24	76
25	76
26	76
27	75
28	75
29	75
30	74
31	74

	Humid (%)	Muggy (%)
1	64	36
2	64	36
3	65	35
4	65	35
5	65	35
6	66	34
7	66	34
8	67	33
9	67	33
10	68	32
11	69	31
12	69	31
13	70	30
14	71	29
15	71	29
16	72	28
17	72	28
18	73	27
19	73	27
20	73	27
21	73	27
22	73	27
23	73	27
24	72	28
25	72	28
26	72	28
27	72	28
28	72	28
29	71	29
30	71	29
31	71	29

	Avg high (°C)	Avg low (°C)
1	27	18
2	27	18
3	27	18
4	27	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	27	18
16	27	18
17	27	18
18	27	18
19	27	18
20	27	18
21	27	18
22	27	18
23	27	18
24	27	18
25	27	18
26	27	18
27	27	18
28	27	18
29	27	18
30	27	18
31	27	18

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	19	81
5	19	81
6	19	81
7	20	80
8	20	80
9	21	79
10	21	79
11	22	78
12	23	77
13	24	76
14	24	76
15	24	76
16	26	74
17	26	74
18	26	74
19	26	74
20	25	75
21	25	75
22	25	75
23	26	74
24	26	74
25	26	74
26	26	74
27	26	74
28	26	74
29	26	74
30	27	73
31	27	73

	Rain chance (%)
1	87
2	87
3	87
4	87
5	87
6	87
7	86
8	86
9	85
10	85
11	84
12	83
13	83
14	82
15	81
16	80
17	80
18	79
19	78
20	78
21	78
22	77
23	77
24	76
25	76
26	76
27	75
28	75
29	75
30	74
31	74

	Humid (%)	Muggy (%)
1	64	36
2	64	36
3	65	35
4	65	35
5	65	35
6	66	34
7	66	34
8	67	33
9	67	33
10	68	32
11	69	31
12	69	31
13	70	30
14	71	29
15	71	29
16	72	28
17	72	28
18	73	27
19	73	27
20	73	27
21	73	27
22	73	27
23	73	27
24	72	28
25	72	28
26	72	28
27	72	28
28	72	28
29	71	29
30	71	29
31	71	29