Geiro weather in May

In May, Geiro sees average daytime highs of 23°C and overnight lows near 16°C, with 57 mm of rain across 15.8 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 13% 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 Geiro's 7th-clearest and 6th-windiest month. For the whole year in context, see Geiro's year-round climate.

Daytime high: 23°; 9th warmest
Overnight low: 16°; 6th coldest
Rainfall: 57 mm; 15.8 wet days
Daylight: 11 h 42 min; 6:37 AM – 6:20 PM
Cloud cover: 62%; 7th clearest
Wind: 11 km/h; 6th windiest
Solar energy: 4.93 kWh/m²
Travel score: 6.0; out of 10

← April Geiro 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 23°C through the month.

A typical May day in Geiro reaches about 23°C in the afternoon and slips back to 16°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 25°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than 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)	24	24	24	24	24	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23
Avg low (°C)	17	17	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	15	15	15	15	15	15	15	15

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

Geiro weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	26° / 18°	199	20.8	12.3	5.0
Feb	26° / 17°	163	16.8	12.2	5.2
Mar	26° / 18°	169	22.5	12	4.8
Apr	24° / 17°	116	23.7	11.9	4.6
May	23° / 16°	57	15.8	11.7	6.0
Jun	22° / 14°	17	6.7	11.7	7.2
Jul	22° / 13°	12	4.7	11.7	7.4
Aug	23° / 13°	16	6.2	11.8	7.4
Sep	24° / 14°	11	3.9	12	8.0
Oct	26° / 15°	26	7.7	12.1	7.3
Nov	26° / 17°	66	12.4	12.3	6.3
Dec	26° / 18°	160	18.9	12.4	5.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 34% of May, with mostly cloudy or overcast conditions the remaining 53%. 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 (%)	37	37	39	39	40	40	41	42	43	43	44	44	44	45	45	45	46	47	48	48	49	50	50	51	53	53	54	55	56	57	58
Cloudier (%)	63	63	61	61	60	60	59	58	57	57	56	56	56	55	55	55	54	53	52	52	51	50	50	49	47	47	46	45	44	43	42

	Clearer (%)	Cloudier (%)
1	37	63
2	37	63
3	39	61
4	39	61
5	40	60
6	40	60
7	41	59
8	42	58
9	43	57
10	43	57
11	44	56
12	44	56
13	44	56
14	45	55
15	45	55
16	45	55
17	46	54
18	47	53
19	48	52
20	48	52
21	49	51
22	50	50
23	50	50
24	51	49
25	53	47
26	53	47
27	54	46
28	55	45
29	56	44
30	57	43
31	58	42

Chance of precipitation in May

Any precipitation

Geiro gets around 57 mm of rain over 15.8 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 51% and peaks near 69% 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 (%)	69	68	67	66	65	64	63	61	60	58	57	56	55	53	52	51	50	49	48	47	45	44	42	41	40	39	37	35	34	32	30

	Rain chance (%)
1	69
2	68
3	67
4	66
5	65
6	64
7	63
8	61
9	60
10	58
11	57
12	56
13	55
14	53
15	52
16	51
17	50
18	49
19	48
20	47
21	45
22	44
23	42
24	41
25	40
26	39
27	37
28	35
29	34
30	32
31	30

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 47% 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 (%)	1	2	2	2	2	3	3	3	4	4	5	5	6	6	6	7	7	8	8	9	9	10	11	12	13	14	15	17	19	21	23
Comfortable (%)	23	25	26	28	29	31	33	34	36	38	40	42	44	46	48	50	52	53	55	56	58	59	59	60	60	60	61	60	60	59	59
Humid (%)	73	71	70	68	68	65	63	62	59	57	55	53	50	47	45	43	41	39	37	35	33	31	30	28	27	26	24	23	21	20	18
Muggy (%)	3	2	2	2	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	1	23	73	3
2	2	25	71	2
3	2	26	70	2
4	2	28	68	2
5	2	29	68	1
6	3	31	65	1
7	3	33	63	1
8	3	34	62	1
9	4	36	59	1
10	4	38	57	1
11	5	40	55	0
12	5	42	53	0
13	6	44	50	0
14	6	46	47	0
15	6	48	45	0
16	7	50	43	0
17	7	52	41	0
18	8	53	39	0
19	8	55	37	0
20	9	56	35	0
21	9	58	33	0
22	10	59	31	0
23	11	59	30	0
24	12	60	28	0
25	13	60	27	0
26	14	60	26	0
27	15	61	24	0
28	17	60	23	0
29	19	60	21	0
30	21	59	20	0
31	23	59	18	0

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 11 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)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11
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	11	calm
2	11	calm
3	11	calm
4	11	calm
5	11	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	11	calm
19	11	calm
20	11	calm
21	11	calm
22	11	calm
23	11	calm
24	11	calm
25	11	calm
26	11	calm
27	11	calm
28	11	calm
29	11	calm
30	11	calm
31	11	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 6:36 AM to 6:40 AM, and sunset from 6:23 PM to 6:20 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	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7	11.7
Sunrise (AM)	6:36	6:36	6:36	6:36	6:36	6:36	6:36	6:36	6:36	6:37	6:37	6:37	6:37	6:37	6:37	6:37	6:37	6:37	6:38	6:38	6:38	6:38	6:38	6:38	6:39	6:39	6:39	6:39	6:39	6:40	6:40
Sunset (PM)	6:23	6:23	6:23	6:23	6:22	6:22	6:22	6:22	6:21	6:21	6:21	6:21	6:21	6:21	6:21	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20	6:20

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.8	6:36	6:23
2	11.8	6:36	6:23
3	11.8	6:36	6:23
4	11.8	6:36	6:23
5	11.8	6:36	6:22
6	11.8	6:36	6:22
7	11.8	6:36	6:22
8	11.8	6:36	6:22
9	11.7	6:36	6:21
10	11.7	6:37	6:21
11	11.7	6:37	6:21
12	11.7	6:37	6:21
13	11.7	6:37	6:21
14	11.7	6:37	6:21
15	11.7	6:37	6:21
16	11.7	6:37	6:20
17	11.7	6:37	6:20
18	11.7	6:37	6:20
19	11.7	6:38	6:20
20	11.7	6:38	6:20
21	11.7	6:38	6:20
22	11.7	6:38	6:20
23	11.7	6:38	6:20
24	11.7	6:38	6:20
25	11.7	6:39	6:20
26	11.7	6:39	6:20
27	11.7	6:39	6:20
28	11.7	6:39	6:20
29	11.7	6:39	6:20
30	11.7	6:40	6:20
31	11.7	6:40	6:20

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.93 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.93 kWh/m² to a high of 6.66 kWh/m² in October across the year — May's 4.93 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)	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	4.9	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0
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	5.0	Bright
2	5.0	Bright
3	5.0	Bright
4	5.0	Bright
5	5.0	Bright
6	5.0	Bright
7	5.0	Bright
8	5.0	Bright
9	5.0	Bright
10	4.9	Bright
11	4.9	Bright
12	4.9	Bright
13	4.9	Bright
14	4.9	Bright
15	4.9	Bright
16	4.9	Bright
17	4.9	Bright
18	4.9	Bright
19	4.9	Bright
20	4.9	Bright
21	4.9	Bright
22	4.9	Bright
23	4.9	Bright
24	5.0	Bright
25	5.0	Bright
26	5.0	Bright
27	5.0	Bright
28	5.0	Bright
29	5.0	Bright
30	5.0	Bright
31	5.0	Bright

Planning a trip in May

Hazard calendar for Geiro

In seasonPeak

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

Geiro's monsoon runs December–April, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is May a good time to visit Geiro?

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

6.0

Sightseeing

7th-best month of the year

4.7

Beach & pool

10th-best month of the year

May is a reasonable time to visit Geiro for sightseeing.

What to pack for Geiro in May

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

In May, Geiro sees daytime highs around 23°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 16 days see rain.

rain gearlight clothessun protection

UV index in Geiro 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 Geiro peaks around March 11 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)	15	16	16	15	11	10	11	11	14	14	13	13
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

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

Location & terrain

Where is Geiro?

Geiro sits at 6.2°S, 36.9°E, 1,284 m above sea level, in Tanzania. The nearest listed city is Kibaigwa, 26 km away.

Topography around Geiro

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

Within 3 km, the terrain around Geiro has significant variations in elevation — a maximum elevation change of 458 m around an average of 1,295 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 845 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,016 m.

The land around Geiro is covered by cropland (69%) within 3 km, cropland (71%) within 16 km, and cropland (36%), trees (26%) and shrubs (25%) within 80 km.

3 km

458 m

cropland 69%

16 km

845 m

cropland 71%

80 km

2,016 m

cropland 36%

treesshrubsgrasslandcroplandartificial surfaces

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

May weather nearby: Kibaigwa 26 km · Mpwapwa 48 km · Msowero 56 km · Dumila 59 km · Magole 61 km · Lubata 65 km · Kilosa 77 km · Kibakwe 84 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 Geiro (-6.15°, 36.8667°, elevation 1,284 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	24	17
2	24	17
3	24	16
4	24	16
5	24	16
6	23	16
7	23	16
8	23	16
9	23	16
10	23	16
11	23	16
12	23	16
13	23	16
14	23	16
15	23	16
16	23	16
17	23	16
18	23	16
19	23	15
20	23	15
21	23	15
22	23	15
23	23	15
24	23	15
25	23	15
26	23	15
27	23	15
28	23	15
29	23	15
30	23	15
31	23	15

	Clearer (%)	Cloudier (%)
1	37	63
2	37	63
3	39	61
4	39	61
5	40	60
6	40	60
7	41	59
8	42	58
9	43	57
10	43	57
11	44	56
12	44	56
13	44	56
14	45	55
15	45	55
16	45	55
17	46	54
18	47	53
19	48	52
20	48	52
21	49	51
22	50	50
23	50	50
24	51	49
25	53	47
26	53	47
27	54	46
28	55	45
29	56	44
30	57	43
31	58	42

	Rain chance (%)
1	69
2	68
3	67
4	66
5	65
6	64
7	63
8	61
9	60
10	58
11	57
12	56
13	55
14	53
15	52
16	51
17	50
18	49
19	48
20	47
21	45
22	44
23	42
24	41
25	40
26	39
27	37
28	35
29	34
30	32
31	30

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	1	23	73	3
2	2	25	71	2
3	2	26	70	2
4	2	28	68	2
5	2	29	68	1
6	3	31	65	1
7	3	33	63	1
8	3	34	62	1
9	4	36	59	1
10	4	38	57	1
11	5	40	55	0
12	5	42	53	0
13	6	44	50	0
14	6	46	47	0
15	6	48	45	0
16	7	50	43	0
17	7	52	41	0
18	8	53	39	0
19	8	55	37	0
20	9	56	35	0
21	9	58	33	0
22	10	59	31	0
23	11	59	30	0
24	12	60	28	0
25	13	60	27	0
26	14	60	26	0
27	15	61	24	0
28	17	60	23	0
29	19	60	21	0
30	21	59	20	0
31	23	59	18	0

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

	Clearer (%)	Cloudier (%)
1	37	63
2	37	63
3	39	61
4	39	61
5	40	60
6	40	60
7	41	59
8	42	58
9	43	57
10	43	57
11	44	56
12	44	56
13	44	56
14	45	55
15	45	55
16	45	55
17	46	54
18	47	53
19	48	52
20	48	52
21	49	51
22	50	50
23	50	50
24	51	49
25	53	47
26	53	47
27	54	46
28	55	45
29	56	44
30	57	43
31	58	42

	Rain chance (%)
1	69
2	68
3	67
4	66
5	65
6	64
7	63
8	61
9	60
10	58
11	57
12	56
13	55
14	53
15	52
16	51
17	50
18	49
19	48
20	47
21	45
22	44
23	42
24	41
25	40
26	39
27	37
28	35
29	34
30	32
31	30

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	1	23	73	3
2	2	25	71	2
3	2	26	70	2
4	2	28	68	2
5	2	29	68	1
6	3	31	65	1
7	3	33	63	1
8	3	34	62	1
9	4	36	59	1
10	4	38	57	1
11	5	40	55	0
12	5	42	53	0
13	6	44	50	0
14	6	46	47	0
15	6	48	45	0
16	7	50	43	0
17	7	52	41	0
18	8	53	39	0
19	8	55	37	0
20	9	56	35	0
21	9	58	33	0
22	10	59	31	0
23	11	59	30	0
24	12	60	28	0
25	13	60	27	0
26	14	60	26	0
27	15	61	24	0
28	17	60	23	0
29	19	60	21	0
30	21	59	20	0
31	23	59	18	0

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

	Clearer (%)	Cloudier (%)
1	37	63
2	37	63
3	39	61
4	39	61
5	40	60
6	40	60
7	41	59
8	42	58
9	43	57
10	43	57
11	44	56
12	44	56
13	44	56
14	45	55
15	45	55
16	45	55
17	46	54
18	47	53
19	48	52
20	48	52
21	49	51
22	50	50
23	50	50
24	51	49
25	53	47
26	53	47
27	54	46
28	55	45
29	56	44
30	57	43
31	58	42

	Rain chance (%)
1	69
2	68
3	67
4	66
5	65
6	64
7	63
8	61
9	60
10	58
11	57
12	56
13	55
14	53
15	52
16	51
17	50
18	49
19	48
20	47
21	45
22	44
23	42
24	41
25	40
26	39
27	37
28	35
29	34
30	32
31	30

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	1	23	73	3
2	2	25	71	2
3	2	26	70	2
4	2	28	68	2
5	2	29	68	1
6	3	31	65	1
7	3	33	63	1
8	3	34	62	1
9	4	36	59	1
10	4	38	57	1
11	5	40	55	0
12	5	42	53	0
13	6	44	50	0
14	6	46	47	0
15	6	48	45	0
16	7	50	43	0
17	7	52	41	0
18	8	53	39	0
19	8	55	37	0
20	9	56	35	0
21	9	58	33	0
22	10	59	31	0
23	11	59	30	0
24	12	60	28	0
25	13	60	27	0
26	14	60	26	0
27	15	61	24	0
28	17	60	23	0
29	19	60	21	0
30	21	59	20	0
31	23	59	18	0