Andernach weather in May

In May, Andernach sees average daytime highs of 18°C and overnight lows near 9°C, with 64 mm of rain across 11.4 wet days and about 15.2 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 19°C by the end. The sky is clear or mostly clear about 18% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 24 min at the start of May to 15 h 48 min by month's end. Set against the rest of the year, May is Andernach's 6th-clearest and 8th-windiest month. For the whole year in context, see Andernach's year-round climate.

Daytime high
18°
5th warmest
Overnight low
8th coldest
Rainfall
64 mm
11.4 wet days
Daylight
15 h 12 min
4:50 AM – 8:03 PM
Cloud cover
68%
6th clearest
Wind
10 km/h
8th windiest
Solar energy
5.04 kWh/m²
Travel score
5.4
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 19°C by the end.

A typical May day in Andernach reaches about 18°C in the afternoon and slips back to 9°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 24°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1167
2167
3167
4177
5178
6178
7178
8178
9178
10178
11178
12178
13178
14188
15189
16189
17189
18189
19189
20189
21189
22199
23199
241910
251910
261910
271910
281910
291910
302010
312010

How May really feels in Andernach

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.

Andernach weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6212.93.28.30.0
Feb / 52113.89.70.2
Mar / 6012.71.711.51.9
Apr14° / 4910.60.313.53.9
May18° / 6411.4015.25.4
Jun21° / 12°6711.2016.16.1
Jul23° / 14°7212.6015.86.4
Aug23° / 13°7011.7014.36.5
Sep19° / 10°6110012.45.7
Oct13° / 6312.2010.53.5
Nov / 6412.618.81.2
Dec / 7614.13.57.90.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43466
53466
63466
73367
83367
93367
103367
113367
123367
133367
143268
153367
163367
173367
183268
193268
203367
213367
223367
233367
243268
253268
263268
273367
283367
293367
303268
313268

Chance of precipitation in May

Any precipitation

Andernach gets around 64 mm of rain over 11.4 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 37% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
538
638
738
838
937
1037
1137
1237
1337
1437
1537
1637
1737
1837
1937
2037
2136
2236
2336
2436
2536
2636
2736
2836
2937
3037
3137

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39820
49820
59820
69820
79820
89820
99730
109730
119730
129730
139730
149640
159640
169640
179550
189451
199361
209361
219271
229172
239082
248992
2587103
2686113
2784124
2883134
2981145
3080155
3178166

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 24 min at the start of May to 15 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over May. Sunrise moves from 5:15 AM to 4:33 AM, and sunset from 7:41 PM to 8:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:157:41
214.55:137:42
314.55:117:44
414.65:097:45
514.75:077:47
614.75:067:48
714.85:047:50
814.85:027:52
914.95:017:53
1014.94:597:55
1115.04:577:56
1215.04:567:58
1315.14:547:59
1415.14:538:01
1515.24:518:02
1615.24:508:03
1715.34:488:05
1815.34:478:06
1915.44:468:08
2015.44:448:09
2115.54:438:11
2215.54:428:12
2315.54:418:13
2415.64:408:14
2515.64:388:16
2615.74:378:17
2715.74:368:18
2815.74:358:19
2915.84:348:21
3015.84:338:22
3115.84:338:23

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.04 kWh/m².

For context, solar energy here swings from a low near 0.62 kWh/m² to a high of 5.38 kWh/m² in June across the year — May's 5.04 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.3Bright
Planning a trip in May

Is May a good time to visit Andernach?

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

5.4
Sightseeing
5th-best month of the year
1.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Andernach for sightseeing.

What to pack for Andernach in May

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

In May, Andernach sees daytime highs around 18°C and nights near 9°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

UV index in Andernach 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 Andernach peaks around July 14 at about 7 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 14UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Andernach 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 Andernach is worst in April — around 16 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodApr 1415 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar14Moderate
Apr16Moderate
May13Moderate
Jun14Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Andernach?

Andernach sits at 50.4°N, 7.4°E, 81 m above sea level, in Germany. The nearest listed city is Neuwied, 5.0 km away.

Topography around Andernach

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

Within 3 km, the terrain around Andernach has only modest variations in elevation — a maximum elevation change of 214 m around an average of 119 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 536 m; within 80 km, large variations in elevation — a maximum elevation change of 1,020 m.

The land around Andernach is covered by cropland (34%), trees (24%) and artificial surfaces (24%) within 3 km, trees (47%) and cropland (27%) within 16 km, and trees (56%) and grassland (20%) within 80 km.

3 km
214 m
16 km
536 m
80 km
1,020 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Neuwied 5.0 km · Bendorf 12 km · Koblenz 15 km · Sinzig 17 km · Mayen 17 km · Remagen 21 km · Lahnstein 21 km · Bad Neuenahr-Ahrweiler 24 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 Andernach (50.4311°, 7.4043°, elevation 81 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).