Tumbi weather in May

In May, Tumbi sees average daytime highs of 29°C and overnight lows near 19°C, with 14 mm of rain across 2.9 wet days and about 11.8 hours of daylight. It is the 7th-warmest and 8th-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 35% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 11 h 48 min at the start of May to 11 h 42 min by month's end. Set against the rest of the year, May is Tumbi's 5th-clearest and 6th-windiest month. For the whole year in context, see Tumbi's year-round climate.

Daytime high: 29°; 7th warmest
Overnight low: 19°; 7th coldest
Rainfall: 14 mm; 2.9 wet days
Daylight: 11 h 48 min; 6:52 AM – 6:38 PM
Cloud cover: 52%; 5th clearest
Wind: 11 km/h; 6th windiest
Solar energy: 5.7 kWh/m²
Travel score: 6.7; out of 10

← April Tumbi year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Tumbi reaches about 29°C in the afternoon and slips back to 19°C overnight — a 10°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, May runs about 1°C warmer than April and on par with June.

	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)	28	28	28	28	28	28	28	28	28	28	28	28	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Avg low (°C)	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	19	19	19	19	19	19

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

Tumbi weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 8th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 26% of May, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to open up as the month goes on.

	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 (%)	51	51	52	53	54	55	57	58	59	60	60	61	61	62	63	64	64	65	64	65	65	65	65	66	66	67	67	67	68	68	68
Cloudier (%)	49	49	48	47	46	45	43	42	41	40	40	39	39	38	37	36	36	35	36	35	35	35	35	34	34	33	33	33	32	32	32

	Clearer (%)	Cloudier (%)
1	51	49
2	51	49
3	52	48
4	53	47
5	54	46
6	55	45
7	57	43
8	58	42
9	59	41
10	60	40
11	60	40
12	61	39
13	61	39
14	62	38
15	63	37
16	64	36
17	64	36
18	65	35
19	64	36
20	65	35
21	65	35
22	65	35
23	65	35
24	66	34
25	66	34
26	67	33
27	67	33
28	67	33
29	68	32
30	68	32
31	68	32

Chance of precipitation in May

Any precipitation

Tumbi gets around 14 mm of rain over 2.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 9% and peaks near 21% 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 (%)	21	20	20	19	18	17	16	16	15	14	13	12	11	10	9	8	8	7	6	6	5	4	3	3	2	2	2	1	1	1	1

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

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

	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 (%)	5	5	6	7	7	8	9	10	11	13	14	16	17	19	21	23	25	27	29	31	34	36	39	41	43	45	48	50	52	55	58
Comfortable (%)	35	37	38	39	41	42	43	44	45	47	48	49	52	52	53	54	54	54	54	55	54	54	53	52	51	50	48	47	45	42	40
Humid (%)	50	48	47	46	45	44	42	41	39	37	34	32	29	27	24	22	20	18	16	13	12	10	8	7	6	5	4	3	3	3	2
Muggy (%)	10	10	9	8	7	7	6	5	4	4	3	3	2	2	2	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	5	35	50	10
2	5	37	48	10
3	6	38	47	9
4	7	39	46	8
5	7	41	45	7
6	8	42	44	7
7	9	43	42	6
8	10	44	41	5
9	11	45	39	4
10	13	47	37	4
11	14	48	34	3
12	16	49	32	3
13	17	52	29	2
14	19	52	27	2
15	21	53	24	2
16	23	54	22	1
17	25	54	20	1
18	27	54	18	1
19	29	54	16	1
20	31	55	13	1
21	34	54	12	0
22	36	54	10	0
23	39	53	8	0
24	41	52	7	0
25	43	51	6	0
26	45	50	5	0
27	48	48	4	0
28	50	47	3	0
29	52	45	3	0
30	55	42	3	0
31	58	40	2	0

Wind in May

Winds average 11 km/h in May.

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

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 48 min at the start of May to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 6:52 AM to 6:55 AM, and sunset from 6:41 PM to 6:38 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)	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.8	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7
Sunrise (AM)	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:52	6:53	6:53	6:53	6:53	6:53	6:53	6:53	6:54	6:54	6:54	6:54	6:54	6:55
Sunset (PM)	6:41	6:41	6:41	6:40	6:40	6:40	6:40	6:39	6:39	6:39	6:39	6:39	6:39	6:39	6:39	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38	6:38

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.8	6:52	6:41
2	11.8	6:52	6:41
3	11.8	6:52	6:41
4	11.8	6:52	6:40
5	11.8	6:52	6:40
6	11.8	6:52	6:40
7	11.8	6:52	6:40
8	11.8	6:52	6:39
9	11.8	6:52	6:39
10	11.8	6:52	6:39
11	11.8	6:52	6:39
12	11.8	6:52	6:39
13	11.8	6:52	6:39
14	11.8	6:52	6:39
15	11.8	6:52	6:39
16	11.8	6:52	6:38
17	11.8	6:52	6:38
18	11.8	6:52	6:38
19	11.8	6:53	6:38
20	11.8	6:53	6:38
21	11.8	6:53	6:38
22	11.8	6:53	6:38
23	11.7	6:53	6:38
24	11.7	6:53	6:38
25	11.7	6:53	6:38
26	11.7	6:54	6:38
27	11.7	6:54	6:38
28	11.7	6:54	6:38
29	11.7	6:54	6:38
30	11.7	6:54	6:38
31	11.7	6:55	6:38

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.7 kWh/m².

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 — May's 5.7 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	5.6	5.6	5.6	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8
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	5.6	Bright
3	5.6	Bright
4	5.6	Bright
5	5.6	Bright
6	5.6	Bright
7	5.6	Bright
8	5.7	Bright
9	5.7	Bright
10	5.7	Bright
11	5.7	Bright
12	5.7	Bright
13	5.7	Bright
14	5.7	Bright
15	5.7	Bright
16	5.7	Bright
17	5.7	Bright
18	5.7	Bright
19	5.7	Bright
20	5.8	Bright
21	5.8	Bright
22	5.8	Bright
23	5.8	Bright
24	5.8	Bright
25	5.8	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.8	Bright
30	5.8	Bright
31	5.8	Bright

Planning a trip in May

Hazard calendar for Tumbi

In seasonPeak

None of Tumbi's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 May a good time to visit Tumbi?

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

6.7

Sightseeing

3rd-best month of the year

8.1

Beach & pool

5th-best month of the year

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

What to pack for Tumbi in May

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

In May, Tumbi sees daytime highs around 29°C and nights near 19°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Tumbi in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 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

← April Tumbi year-round climate June →Best places to visit in May

May 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	28	19
2	28	19
3	28	19
4	28	19
5	28	19
6	28	19
7	28	19
8	28	19
9	28	19
10	28	19
11	28	19
12	28	19
13	29	19
14	29	19
15	29	19
16	29	19
17	29	19
18	29	19
19	29	19
20	29	19
21	29	19
22	29	19
23	29	19
24	29	19
25	29	19
26	29	19
27	29	19
28	29	19
29	29	19
30	29	19
31	29	19

	Clearer (%)	Cloudier (%)
1	51	49
2	51	49
3	52	48
4	53	47
5	54	46
6	55	45
7	57	43
8	58	42
9	59	41
10	60	40
11	60	40
12	61	39
13	61	39
14	62	38
15	63	37
16	64	36
17	64	36
18	65	35
19	64	36
20	65	35
21	65	35
22	65	35
23	65	35
24	66	34
25	66	34
26	67	33
27	67	33
28	67	33
29	68	32
30	68	32
31	68	32

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	5	35	50	10
2	5	37	48	10
3	6	38	47	9
4	7	39	46	8
5	7	41	45	7
6	8	42	44	7
7	9	43	42	6
8	10	44	41	5
9	11	45	39	4
10	13	47	37	4
11	14	48	34	3
12	16	49	32	3
13	17	52	29	2
14	19	52	27	2
15	21	53	24	2
16	23	54	22	1
17	25	54	20	1
18	27	54	18	1
19	29	54	16	1
20	31	55	13	1
21	34	54	12	0
22	36	54	10	0
23	39	53	8	0
24	41	52	7	0
25	43	51	6	0
26	45	50	5	0
27	48	48	4	0
28	50	47	3	0
29	52	45	3	0
30	55	42	3	0
31	58	40	2	0

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

	Clearer (%)	Cloudier (%)
1	51	49
2	51	49
3	52	48
4	53	47
5	54	46
6	55	45
7	57	43
8	58	42
9	59	41
10	60	40
11	60	40
12	61	39
13	61	39
14	62	38
15	63	37
16	64	36
17	64	36
18	65	35
19	64	36
20	65	35
21	65	35
22	65	35
23	65	35
24	66	34
25	66	34
26	67	33
27	67	33
28	67	33
29	68	32
30	68	32
31	68	32

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	5	35	50	10
2	5	37	48	10
3	6	38	47	9
4	7	39	46	8
5	7	41	45	7
6	8	42	44	7
7	9	43	42	6
8	10	44	41	5
9	11	45	39	4
10	13	47	37	4
11	14	48	34	3
12	16	49	32	3
13	17	52	29	2
14	19	52	27	2
15	21	53	24	2
16	23	54	22	1
17	25	54	20	1
18	27	54	18	1
19	29	54	16	1
20	31	55	13	1
21	34	54	12	0
22	36	54	10	0
23	39	53	8	0
24	41	52	7	0
25	43	51	6	0
26	45	50	5	0
27	48	48	4	0
28	50	47	3	0
29	52	45	3	0
30	55	42	3	0
31	58	40	2	0

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

	Clearer (%)	Cloudier (%)
1	51	49
2	51	49
3	52	48
4	53	47
5	54	46
6	55	45
7	57	43
8	58	42
9	59	41
10	60	40
11	60	40
12	61	39
13	61	39
14	62	38
15	63	37
16	64	36
17	64	36
18	65	35
19	64	36
20	65	35
21	65	35
22	65	35
23	65	35
24	66	34
25	66	34
26	67	33
27	67	33
28	67	33
29	68	32
30	68	32
31	68	32

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	5	35	50	10
2	5	37	48	10
3	6	38	47	9
4	7	39	46	8
5	7	41	45	7
6	8	42	44	7
7	9	43	42	6
8	10	44	41	5
9	11	45	39	4
10	13	47	37	4
11	14	48	34	3
12	16	49	32	3
13	17	52	29	2
14	19	52	27	2
15	21	53	24	2
16	23	54	22	1
17	25	54	20	1
18	27	54	18	1
19	29	54	16	1
20	31	55	13	1
21	34	54	12	0
22	36	54	10	0
23	39	53	8	0
24	41	52	7	0
25	43	51	6	0
26	45	50	5	0
27	48	48	4	0
28	50	47	3	0
29	52	45	3	0
30	55	42	3	0
31	58	40	2	0