Tumbi weather in December

In December, Tumbi sees average daytime highs of 28°C and overnight lows near 19°C, with 155 mm of rain across 19.7 wet days and about 12.3 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 17% of the time in December, and the air most often feels humid.

Daylight stretches from about 12 h 18 min at the start of December to 12 h 18 min by month's end. Set against the rest of the year, December is Tumbi's 10th-clearest and 11th-windiest month. For the whole year in context, see Tumbi's year-round climate.

Daytime high: 28°; 10th warmest
Overnight low: 19°; 9th coldest
Rainfall: 155 mm; 19.7 wet days
Daylight: 12 h 18 min; 6:36 AM – 6:54 PM
Cloud cover: 70%; 10th clearest
Wind: 6 km/h; 11th windiest
Solar energy: 5.55 kWh/m²
Travel score: 4.7; out of 10

← November Tumbi 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 28°C through the month.

A typical December day in Tumbi reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, December runs about 2°C cooler than 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)	29	29	29	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28
Avg low (°C)	20	20	20	20	20	20	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19

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

Tumbi weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 19°	152	20.9	12.3	4.7
Feb	28° / 19°	113	16.4	12.2	4.8
Mar	28° / 19°	129	17.1	12	5.0
Apr	28° / 19°	80	12.2	11.9	5.8
May	29° / 19°	14	2.9	11.8	6.7
Jun	29° / 18°	0	0.1	11.7	7.0
Jul	29° / 17°	0	0	11.7	7.2
Aug	30° / 18°	1	0.2	11.8	6.4
Sep	31° / 20°	2	0.4	12	5.5
Oct	32° / 21°	18	3.1	12.1	4.8
Nov	30° / 20°	94	11.6	12.2	4.7
Dec	28° / 19°	155	19.7	12.3	4.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 65%.

	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 (%)	42	42	40	40	38	38	37	37	35	35	34	33	32	32	32	31	31	31	32	32	33	33	32	33	33	33	33	34	34	34	34
Cloudier (%)	58	58	60	60	62	62	63	63	65	65	66	67	68	68	68	69	69	69	68	68	67	67	68	67	67	67	67	66	66	66	66

	Clearer (%)	Cloudier (%)
1	42	58
2	42	58
3	40	60
4	40	60
5	38	62
6	38	62
7	37	63
8	37	63
9	35	65
10	35	65
11	34	66
12	33	67
13	32	68
14	32	68
15	32	68
16	31	69
17	31	69
18	31	69
19	32	68
20	32	68
21	33	67
22	33	67
23	32	68
24	33	67
25	33	67
26	33	67
27	33	67
28	34	66
29	34	66
30	34	66
31	34	66

Chance of precipitation in December

Any precipitation

Tumbi gets around 155 mm of rain over 19.7 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 63% and peaks near 66% 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	31
Rain chance (%)	56	56	57	58	58	59	60	61	62	62	63	64	65	65	66	66	66	66	66	66	66	66	66	66	66	66	66	66	66	66	66

	Rain chance (%)
1	56
2	56
3	57
4	58
5	58
6	59
7	60
8	61
9	62
10	62
11	63
12	64
13	65
14	65
15	66
16	66
17	66
18	66
19	66
20	66
21	66
22	66
23	66
24	66
25	66
26	66
27	66
28	66
29	66
30	66
31	66

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 31% 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
Dry (%)	8	8	7	7	6	6	6	5	5	5	4	4	4	3	3	3	3	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Comfortable (%)	21	21	21	21	20	20	19	18	18	17	16	15	14	14	13	12	12	12	12	11	11	11	10	10	10	9	9	9	9	8	8
Humid (%)	51	50	50	50	50	50	50	51	50	50	52	52	52	52	53	53	52	53	52	53	52	51	52	51	50	51	50	50	50	49	49
Muggy (%)	20	21	22	23	24	24	25	26	27	28	28	29	30	31	31	32	33	33	34	34	35	36	36	37	38	38	39	39	40	41	41

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	8	21	51	20
2	8	21	50	21
3	7	21	50	22
4	7	21	50	23
5	6	20	50	24
6	6	20	50	24
7	6	19	50	25
8	5	18	51	26
9	5	18	50	27
10	5	17	50	28
11	4	16	52	28
12	4	15	52	29
13	4	14	52	30
14	3	14	52	31
15	3	13	53	31
16	3	12	53	32
17	3	12	52	33
18	2	12	53	33
19	2	12	52	34
20	2	11	53	34
21	2	11	52	35
22	2	11	51	36
23	2	10	52	36
24	2	10	51	37
25	2	10	50	38
26	2	9	51	38
27	2	9	50	39
28	2	9	50	39
29	2	9	50	40
30	2	8	49	41
31	2	8	49	41

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 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	31
Wind speed (km/h)	7	7	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	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	7	calm
2	7	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	6	calm
8	6	calm
9	6	calm
10	6	calm
11	6	calm
12	6	calm
13	6	calm
14	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	calm
19	6	calm
20	6	calm
21	6	calm
22	6	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	calm
30	6	calm
31	6	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 18 min at the start of December to 12 h 18 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 6:31 AM to 6:44 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)	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3
Sunrise (AM)	6:31	6:31	6:31	6:32	6:32	6:32	6:33	6:33	6:34	6:34	6:34	6:35	6:35	6:36	6:36	6:36	6:37	6:37	6:38	6:38	6:39	6:39	6:40	6:40	6:41	6:41	6:42	6:42	6:43	6:43	6:44
Sunset (PM)	6:47	6:47	6:48	6:48	6:49	6:49	6:50	6:50	6:51	6:51	6:52	6:52	6:53	6:53	6:54	6:54	6:54	6:55	6:55	6:56	6:56	6:57	6:57	6:58	6:58	6:59	6:59	7:00	7:00	7:00	7:01

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	6:31	6:47
2	12.3	6:31	6:47
3	12.3	6:31	6:48
4	12.3	6:32	6:48
5	12.3	6:32	6:49
6	12.3	6:32	6:49
7	12.3	6:33	6:50
8	12.3	6:33	6:50
9	12.3	6:34	6:51
10	12.3	6:34	6:51
11	12.3	6:34	6:52
12	12.3	6:35	6:52
13	12.3	6:35	6:53
14	12.3	6:36	6:53
15	12.3	6:36	6:54
16	12.3	6:36	6:54
17	12.3	6:37	6:54
18	12.3	6:37	6:55
19	12.3	6:38	6:55
20	12.3	6:38	6:56
21	12.3	6:39	6:56
22	12.3	6:39	6:57
23	12.3	6:40	6:57
24	12.3	6:40	6:58
25	12.3	6:41	6:58
26	12.3	6:41	6:59
27	12.3	6:42	6:59
28	12.3	6:42	7:00
29	12.3	6:43	7:00
30	12.3	6:43	7:00
31	12.3	6:44	7:01

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.55 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 5.55 kWh/m² to a high of 6.9 kWh/m² in September across the year — December's 5.55 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)	5.7	5.7	5.7	5.7	5.7	5.7	5.6	5.6	5.6	5.6	5.6	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	5.5	5.5	5.6	5.6	5.6	5.6	5.6
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	5.7	Bright
2	5.7	Bright
3	5.7	Bright
4	5.7	Bright
5	5.7	Bright
6	5.7	Bright
7	5.6	Bright
8	5.6	Bright
9	5.6	Bright
10	5.6	Bright
11	5.6	Bright
12	5.5	Bright
13	5.5	Bright
14	5.5	Bright
15	5.5	Bright
16	5.5	Bright
17	5.5	Bright
18	5.5	Bright
19	5.5	Bright
20	5.5	Bright
21	5.5	Bright
22	5.5	Bright
23	5.5	Bright
24	5.5	Bright
25	5.5	Bright
26	5.5	Bright
27	5.6	Bright
28	5.6	Bright
29	5.6	Bright
30	5.6	Bright
31	5.6	Bright

Planning a trip in December

Hazard calendar for Tumbi

In seasonPeak

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

Tumbi's rainy season runs November–April, 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 Tumbi?

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

4.7

Sightseeing

10th-best month of the year

5.2

Beach & pool

11th-best month of the year

December is a reasonable time to visit Tumbi for sightseeing.

What to pack for Tumbi in December

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

In December, Tumbi sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in Tumbi 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 Tumbi peaks around February 22 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 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	16	16	15	11	10	11	11	13	14	13	13
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

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

Location & terrain

Where is Tumbi?

Tumbi sits at 5.1°S, 32.7°E, 1,168 m above sea level, in Tanzania. The nearest listed city is Tabora, 12 km away.

Topography around Tumbi

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

Within 3 km, the terrain around Tumbi has only modest variations in elevation — a maximum elevation change of 134 m around an average of 1,188 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 230 m; within 80 km, significant variations in elevation — a maximum elevation change of 335 m.

The land around Tumbi is covered by shrubs (46%) and cropland (36%) within 3 km, shrubs (44%) and cropland (30%) within 16 km, and cropland (42%), shrubs (27%) and trees (26%) within 80 km.

3 km

134 m

shrubs 46%

16 km

230 m

shrubs 44%

80 km

335 m

cropland 42%

treesshrubsgrasslandcroplandartificial surfaces

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

December weather nearby: Tabora 12 km · Mabama 23 km · Sikonge 63 km · Urambo 76 km · Nzega 107 km · Isaka 132 km · Kahama 138 km · Tinde 141 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 Tumbi (-5.0667°, 32.7333°, elevation 1,168 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. 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	29	20
2	29	20
3	29	20
4	28	20
5	28	20
6	28	20
7	28	19
8	28	19
9	28	19
10	28	19
11	28	19
12	28	19
13	28	19
14	28	19
15	28	19
16	28	19
17	28	19
18	28	19
19	28	19
20	28	19
21	28	19
22	28	19
23	28	19
24	28	19
25	28	19
26	28	19
27	28	19
28	28	19
29	28	19
30	28	19
31	28	19

	Clearer (%)	Cloudier (%)
1	42	58
2	42	58
3	40	60
4	40	60
5	38	62
6	38	62
7	37	63
8	37	63
9	35	65
10	35	65
11	34	66
12	33	67
13	32	68
14	32	68
15	32	68
16	31	69
17	31	69
18	31	69
19	32	68
20	32	68
21	33	67
22	33	67
23	32	68
24	33	67
25	33	67
26	33	67
27	33	67
28	34	66
29	34	66
30	34	66
31	34	66

	Rain chance (%)
1	56
2	56
3	57
4	58
5	58
6	59
7	60
8	61
9	62
10	62
11	63
12	64
13	65
14	65
15	66
16	66
17	66
18	66
19	66
20	66
21	66
22	66
23	66
24	66
25	66
26	66
27	66
28	66
29	66
30	66
31	66

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	8	21	51	20
2	8	21	50	21
3	7	21	50	22
4	7	21	50	23
5	6	20	50	24
6	6	20	50	24
7	6	19	50	25
8	5	18	51	26
9	5	18	50	27
10	5	17	50	28
11	4	16	52	28
12	4	15	52	29
13	4	14	52	30
14	3	14	52	31
15	3	13	53	31
16	3	12	53	32
17	3	12	52	33
18	2	12	53	33
19	2	12	52	34
20	2	11	53	34
21	2	11	52	35
22	2	11	51	36
23	2	10	52	36
24	2	10	51	37
25	2	10	50	38
26	2	9	51	38
27	2	9	50	39
28	2	9	50	39
29	2	9	50	40
30	2	8	49	41
31	2	8	49	41

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

	Clearer (%)	Cloudier (%)
1	42	58
2	42	58
3	40	60
4	40	60
5	38	62
6	38	62
7	37	63
8	37	63
9	35	65
10	35	65
11	34	66
12	33	67
13	32	68
14	32	68
15	32	68
16	31	69
17	31	69
18	31	69
19	32	68
20	32	68
21	33	67
22	33	67
23	32	68
24	33	67
25	33	67
26	33	67
27	33	67
28	34	66
29	34	66
30	34	66
31	34	66

	Rain chance (%)
1	56
2	56
3	57
4	58
5	58
6	59
7	60
8	61
9	62
10	62
11	63
12	64
13	65
14	65
15	66
16	66
17	66
18	66
19	66
20	66
21	66
22	66
23	66
24	66
25	66
26	66
27	66
28	66
29	66
30	66
31	66

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	8	21	51	20
2	8	21	50	21
3	7	21	50	22
4	7	21	50	23
5	6	20	50	24
6	6	20	50	24
7	6	19	50	25
8	5	18	51	26
9	5	18	50	27
10	5	17	50	28
11	4	16	52	28
12	4	15	52	29
13	4	14	52	30
14	3	14	52	31
15	3	13	53	31
16	3	12	53	32
17	3	12	52	33
18	2	12	53	33
19	2	12	52	34
20	2	11	53	34
21	2	11	52	35
22	2	11	51	36
23	2	10	52	36
24	2	10	51	37
25	2	10	50	38
26	2	9	51	38
27	2	9	50	39
28	2	9	50	39
29	2	9	50	40
30	2	8	49	41
31	2	8	49	41

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

	Clearer (%)	Cloudier (%)
1	42	58
2	42	58
3	40	60
4	40	60
5	38	62
6	38	62
7	37	63
8	37	63
9	35	65
10	35	65
11	34	66
12	33	67
13	32	68
14	32	68
15	32	68
16	31	69
17	31	69
18	31	69
19	32	68
20	32	68
21	33	67
22	33	67
23	32	68
24	33	67
25	33	67
26	33	67
27	33	67
28	34	66
29	34	66
30	34	66
31	34	66

	Rain chance (%)
1	56
2	56
3	57
4	58
5	58
6	59
7	60
8	61
9	62
10	62
11	63
12	64
13	65
14	65
15	66
16	66
17	66
18	66
19	66
20	66
21	66
22	66
23	66
24	66
25	66
26	66
27	66
28	66
29	66
30	66
31	66

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	8	21	51	20
2	8	21	50	21
3	7	21	50	22
4	7	21	50	23
5	6	20	50	24
6	6	20	50	24
7	6	19	50	25
8	5	18	51	26
9	5	18	50	27
10	5	17	50	28
11	4	16	52	28
12	4	15	52	29
13	4	14	52	30
14	3	14	52	31
15	3	13	53	31
16	3	12	53	32
17	3	12	52	33
18	2	12	53	33
19	2	12	52	34
20	2	11	53	34
21	2	11	52	35
22	2	11	51	36
23	2	10	52	36
24	2	10	51	37
25	2	10	50	38
26	2	9	51	38
27	2	9	50	39
28	2	9	50	39
29	2	9	50	40
30	2	8	49	41
31	2	8	49	41