Rheinbach weather in May

In May, Rheinbach sees average daytime highs of 18°C and overnight lows near 9°C, with 61 mm of rain across 11.6 wet days and about 15.2 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 20°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 54 min by month's end. Set against the rest of the year, May is Rheinbach's 6th-clearest and 9th-windiest month. For the whole year in context, see Rheinbach's year-round climate.

Daytime high
18°
5th warmest
Overnight low
8th coldest
Rainfall
61 mm
11.6 wet days
Daylight
15 h 18 min
4:51 AM – 8:06 PM
Cloud cover
68%
6th clearest
Wind
11 km/h
9th windiest
Solar energy
5.03 kWh/m²
Travel score
5.5
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 20°C by the end.

A typical May day in Rheinbach 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)
1178
2178
3178
4178
5178
6178
7178
8178
9179
10179
11189
12189
13189
14189
15189
16189
17189
18189
191910
201910
211910
221910
231910
241910
251910
262010
272011
282011
292011
302011
312011

How May really feels in Rheinbach

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.

Rheinbach weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 63132.48.30.1
Feb / 5511.43.39.70.5
Mar10° / 5912.81.111.52.1
Apr14° / 4810.40.213.54.1
May18° / 6111.6015.25.5
Jun21° / 12°7111.8016.26.1
Jul23° / 14°7412.7015.86.4
Aug23° / 14°7811.9014.36.5
Sep19° / 11°6210.5012.45.9
Oct14° / 6511.6010.43.9
Nov / 6612.70.88.71.6
Dec / 7514.937.80.3

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 14% of May, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23466
33268
43268
53367
63367
73367
83268
93268
103268
113367
123367
133268
143268
153367
163268
173268
183268
193169
203268
213268
223169
233169
243268
253268
263268
273268
283367
293367
303367
313367

Chance of precipitation in May

Any precipitation

Rheinbach gets around 61 mm of rain over 11.6 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 38% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
539
639
739
838
938
1038
1138
1238
1338
1438
1538
1637
1737
1837
1936
2036
2136
2236
2336
2436
2537
2637
2737
2838
2938
3039
3139

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
29910
39910
49820
59820
69820
79820
89820
99730
109730
119730
129730
139730
149640
159640
169451
179451
189361
199361
209172
219172
228983
238893
2486104
2586104
2684115
2782126
2881136
2979147
3078157
3176168

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 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
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 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over May. Sunrise moves from 5:16 AM to 4:34 AM, and sunset from 7:43 PM to 8:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:167:43
214.55:147:44
314.65:127:46
414.65:107:48
514.75:097:49
614.75:077:51
714.85:057:52
814.85:037:54
914.95:027:55
1014.95:007:57
1115.04:587:59
1215.14:578:00
1315.14:558:02
1415.24:548:03
1515.24:528:05
1615.34:518:06
1715.34:498:07
1815.34:488:09
1915.44:478:10
2015.44:458:12
2115.54:448:13
2215.54:438:14
2315.64:428:16
2415.64:418:17
2515.74:398:18
2615.74:388:20
2715.74:378:21
2815.84:368:22
2915.84:358:23
3015.84:348:25
3115.94:348:26

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.03 kWh/m².

For context, solar energy here swings from a low near 0.62 kWh/m² to a high of 5.33 kWh/m² in June across the year — May's 5.03 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
64.8Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in May

Is May a good time to visit Rheinbach?

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

5.5
Sightseeing
5th-best month of the year
2.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Rheinbach for sightseeing.

What to pack for Rheinbach in May

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

In May, Rheinbach sees daytime highs around 18°C and nights near 9°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

UV index in Rheinbach 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 Rheinbach peaks around July 13 at about 6 (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 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

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

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1415 µg/m³Dec 109 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun14Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Rheinbach?

Rheinbach sits at 50.6°N, 6.9°E, 182 m above sea level, in Germany. The nearest listed city is Meckenheim, 6.0 km away.

Topography around Rheinbach

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

Within 3 km, the terrain around Rheinbach has only modest variations in elevation — a maximum elevation change of 163 m around an average of 192 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 529 m; within 80 km, large variations in elevation — a maximum elevation change of 1,018 m.

The land around Rheinbach is covered by cropland (36%), trees (30%) and grassland (21%) within 3 km, trees (46%) and cropland (28%) within 16 km, and trees (51%) and grassland (22%) within 80 km.

3 km
163 m
16 km
529 m
80 km
1,018 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Meckenheim 6.0 km · Wachtberg 11 km · Bonn Hardtberg 11 km · Euskirchen 12 km · Alfter 13 km · Bad Neuenahr-Ahrweiler 15 km · Bornheim 16 km · Bonn 16 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 Rheinbach (50.6256°, 6.9491°, elevation 182 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).