T’īs Isat weather in May

In May, T’īs Isat sees average daytime highs of 26°C and overnight lows near 17°C, with 102 mm of rain across 15 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 25°C by the end. The sky is clear or mostly clear about 34% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is T’īs Isat's 8th-clearest and 4th-windiest month. For the whole year in context, see T’īs Isat's year-round climate.

Daytime high
26°
4th warmest
Overnight low
17°
11th coldest
Rainfall
102 mm
15 wet days
Daylight
12 h 30 min
6:10 AM – 6:42 PM
Cloud cover
52%
8th clearest
Wind
7 km/h
4th windiest
Solar energy
6.09 kWh/m²
Travel score
6.0
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 25°C by the end.

A typical May day in T’īs Isat reaches about 26°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, May runs about 2°C cooler than April and about 3°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12717
22717
32717
42717
52717
62717
72717
82717
92717
102717
112717
122717
132717
142717
152717
162617
172617
182617
192617
202617
212617
222617
232617
242617
252616
262616
272616
282616
292516
302516
312516

T’īs Isat weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 14°30.711.48.7
Feb27° / 15°40.911.68.2
Mar28° / 16°163.111.97.5
Apr28° / 17°265.812.26.9
May26° / 17°1021512.56.0
Jun24° / 15°28426.112.74.3
Jul21° / 15°52130.912.63.4
Aug21° / 15°52430.912.43.4
Sep22° / 14°24826.612.14.3
Oct24° / 14°5811.311.77.1
Nov24° / 13°153.511.58.6
Dec25° / 13°4111.38.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 31% of May, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26535
36535
46436
56535
66535
76535
86535
96535
106535
116634
126634
136634
146634
156634
166733
176733
186733
196733
206733
216733
226634
236535
246535
256535
266634
276634
286535
296535
306535
316436

Chance of precipitation in May

Any precipitation

T’īs Isat gets around 102 mm of rain over 15 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 48% and peaks near 66% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
134
236
337
438
539
639
740
841
942
1042
1143
1244
1344
1445
1546
1646
1747
1848
1949
2050
2151
2252
2354
2455
2557
2658
2760
2861
2963
3065
3166

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 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
171290
267321
365341
463361
562371
660391
757412
855432
954442
1052462
1150473
1248493
1347503
1445523
1544524
1642544
1741554
1839574
1938575
2036595
2134615
2232635
2330646
2428666
2526686
2624697
2722717
2820728
2918748
3016759
3115769

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 6:15 AM to 6:09 AM, and sunset from 6:39 PM to 6:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:156:39
212.46:146:39
312.46:146:39
412.46:146:39
512.46:136:40
612.46:136:40
712.56:136:40
812.56:126:40
912.56:126:40
1012.56:126:40
1112.56:116:41
1212.56:116:41
1312.56:116:41
1412.56:116:41
1512.56:106:41
1612.56:106:42
1712.56:106:42
1812.56:106:42
1912.56:106:42
2012.66:096:43
2112.66:096:43
2212.66:096:43
2312.66:096:43
2412.66:096:44
2512.66:096:44
2612.66:096:44
2712.66:096:44
2812.66:096:45
2912.66:096:45
3012.66:096:45
3112.66:096:46

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.09 kWh/m².

For context, solar energy here swings from a low near 4.4 kWh/m² to a high of 6.71 kWh/m² in April across the year — May's 6.09 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.0Intense
206.0Intense
216.0Bright
226.0Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.7Bright
Planning a trip in May

Hazard calendar for T’īs Isat

In seasonPeak

None of T’īs Isat's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

T’īs Isat's monsoon runs June–September, 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 T’īs Isat?

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

6.0
Sightseeing
8th-best month of the year
5.9
Beach & pool
7th-best month of the year

May is a reasonable time to visit T’īs Isat for sightseeing.

What to pack for T’īs Isat in May

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

In May, T’īs Isat sees daytime highs around 26°C and nights near 17°C. Pack rain gear and sun protection. Worth having: light clothes. About 15 days see rain.

rain gearsun protectionlight clothes

UV index in T’īs Isat in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 T’īs Isat peaks around March 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 21UV 15Dec 11UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov10Extreme
Dec10Very high

Air quality in T’īs Isat in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in T’īs Isat is worst in October — around 41 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorOct 2241 µg/m³Aug 927 µg/m³
PM2.5 (µg/m³)Level
Jan37Poor
Feb37Poor
Mar35Moderate
Apr32Moderate
May28Moderate
Jun32Moderate
Jul27Moderate
Aug27Moderate
Sep36Poor
Oct41Poor
Nov41Poor
Dec39Poor
Location & terrain

Where is T’īs Isat?

T’īs Isat sits at 11.5°N, 37.6°E, 1,645 m above sea level, in Ethiopia. The nearest listed city is Bahir Dar, 24 km away.

Topography around T’īs Isat

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of T’īs Isat.

Within 3 km, the terrain around T’īs Isat has significant variations in elevation — a maximum elevation change of 333 m around an average of 1,655 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,049 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,849 m.

The land around T’īs Isat is covered by cropland (78%) within 3 km, cropland (70%) within 16 km, and cropland (71%) within 80 km.

3 km
333 m
16 km
1,049 m
80 km
2,849 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Bahir Dar 24 km · Ādēt 26 km · Mer’āwī 46 km · Werota 50 km · Mot’a 54 km · Debre Tabor 62 km · Gurbetē 70 km · Ādīs Zemen 74 km

Ethiopia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / F / L
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$933
2025
Happiness
4.0 / 10
World Happiness, 2025
Safe drinking water
14%
of population, 2024
Homicide rate
8.5
per 100k, 2012
Road deaths
28.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 499
Religion
Ethiopian Orthodox 44%Muslim 31%Protestant 23%other 1%

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 T’īs Isat (11.4833°, 37.5833°, elevation 1,645 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).