Passau weather in May

In May, Passau sees average daytime highs of 19°C and overnight lows near 10°C, with 89 mm of rain across 13.7 wet days and about 15 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 20°C by the end. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of May to 15 h 36 min by month's end. Set against the rest of the year, May is Passau's 6th-clearest and 6th-windiest month. For the whole year in context, see Passau's year-round climate.

Daytime high
19°
4th warmest
Overnight low
10°
8th coldest
Rainfall
89 mm
13.7 wet days
Daylight
15 hours
4:32 AM – 7:33 PM
Cloud cover
63%
6th clearest
Wind
10 km/h
6th windiest
Solar energy
5.28 kWh/m²
Travel score
5.6
out of 10

Passau is main settlement of Passau in Germany.

Air quality
Moderate
PM2.5 12.4 µg/m³ · 2019

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 18°C in the first days to 20°C by the end.

A typical May day in Passau reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 25°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1188
2188
3188
4188
5188
6189
7189
8189
9189
10189
11199
12199
13199
14199
15199
161910
171910
181910
191910
201910
211910
222010
232010
242010
252011
262011
272011
282011
292011
302111
312111

How May really feels in Passau

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Passau weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°67126.78.50.0
Feb / -2°53105.49.80.1
Mar / 7012.13.711.61.8
Apr15° / 5410.30.813.44.2
May19° / 10°8913.70155.6
Jun22° / 13°9413.3015.86.1
Jul24° / 15°9813.5015.56.5
Aug24° / 14°9212.1014.16.6
Sep19° / 10°7310.9012.45.8
Oct13° / 6310.70.410.63.7
Nov / 5710.53.190.9
Dec / -1°6712.46.38.20.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
24060
34060
43961
53961
63961
73961
83961
93961
103961
113961
124060
134060
144060
153961
163961
173961
184060
193961
203961
214060
223961
234060
244060
254159
264159
274060
284060
294159
304159
314159

Chance of precipitation in May

Any precipitation

Passau gets around 89 mm of rain over 13.7 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 43% and peaks near 46% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
141
241
342
442
542
643
743
843
943
1043
1143
1243
1343
1443
1543
1643
1743
1844
1944
2044
2144
2244
2344
2444
2545
2645
2745
2845
2945
3045
3146

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29820
39820
49820
59820
69820
79820
89820
99730
109730
119730
129730
139730
149730
159730
169640
179640
189550
199460
209370
219280
2290100
2389110
2487130
2585141
2683161
2782171
2880191
2979201
3076222
3175232

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 18 min at the start of May to 15 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over May. Sunrise moves from 4:55 AM to 4:16 AM, and sunset from 7:12 PM to 7:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:557:12
214.34:547:13
314.44:527:15
414.44:507:16
514.54:497:17
614.54:477:19
714.64:457:20
814.64:447:22
914.74:427:23
1014.74:417:25
1114.84:397:26
1214.84:387:27
1314.94:367:29
1414.94:357:30
1515.04:347:32
1615.04:327:33
1715.14:317:34
1815.14:307:35
1915.14:287:37
2015.24:277:38
2115.24:267:39
2215.34:257:41
2315.34:247:42
2415.34:237:43
2515.44:227:44
2615.44:217:45
2715.44:207:47
2815.54:197:48
2915.54:187:49
3015.54:177:50
3115.64:167:51

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.28 kWh/m².

For context, solar energy here swings from a low near 0.87 kWh/m² to a high of 5.57 kWh/m² in June across the year — May's 5.28 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.5Bright
Planning a trip in May

Is May a good time to visit Passau?

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

5.6
Sightseeing
5th-best month of the year
2.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Passau for sightseeing.

What to pack for Passau in May

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

In May, Passau sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear and sun protection. About 14 days see rain.

rain gearsun protection

UV index in Passau in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Passau peaks around July 12 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 12UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Passau 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 Passau is worst in June — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 9 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Passau's WHO annual average of 12.4 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1515 µg/m³Nov 169 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar14Moderate
Apr15Moderate
May14Moderate
Jun15Moderate
Jul14Moderate
Aug13Moderate
Sep12Good
Oct10Good
Nov9Good
Dec10Good
Location & terrain

Where is Passau?

Passau sits at 48.6°N, 13.4°E, 366 m above sea level, in Germany. The nearest listed city is Vilshofen, 19 km away.

BurghausenWelsLinzDingolfingCesky KrumlovTraun

Topography around Passau

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

Within 3 km, the terrain around Passau has only modest variations in elevation — a maximum elevation change of 184 m around an average of 365 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 430 m; within 80 km, large variations in elevation — a maximum elevation change of 1,194 m.

The land around Passau is covered by trees (53%) and artificial surfaces (20%) within 3 km, trees (42%), cropland (27%) and grassland (23%) within 16 km, and trees (46%), cropland (27%) and grassland (23%) within 80 km.

3 km
184 m
16 km
430 m
80 km
1,194 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Vilshofen 19 km · Deggendorf 46 km · Burghausen 63 km · Wels 63 km · Linz 69 km · Dingolfing 70 km · Cesky Krumlov 70 km · Traun 71 km

Germany travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 80% of US
price level, 2025
GDP per capita
$60,496
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.9
per 100k, 2023
Road deaths
3.8
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 615
Religion
none 44%Roman Catholic 25%Protestant 23%other 5%

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 Passau (48.5665°, 13.4312°, elevation 366 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).