Germany · 1991–2020

Best time to visit
Sankt Augustin

For Sankt Augustin, August has the most comfortable weather in our climate comparison. Typical daytime highs are 24°C, nights average 13.5°C, and rainfall totals about 80 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthAugust

Typical daytime high24°C

Typical night-time low13.5°C

August rainfall80 mm

Overall comfort

August

Other strong months: July and June

84/100 weather score

Outdoor sightseeing

September

Other strong months: May and June

87/100 weather score

Make the answer personal

Choose the weather
that suits you.

Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.

Daytime high: at least 18°CDaytime high: at most 28°CMonthly rain: no more than 100 mmWet days: no more than 11

5 months fit your choices for Sankt Augustin

May19.2°C day · 69 mm rain · 10.2 wet days

June22.5°C day · 85 mm rain · 10.6 wet days

July24.2°C day · 83 mm rain · 11 wet days

August24°C day · 80 mm rain · 10.3 wet days

September20°C day · 63 mm rain · 9.3 wet days

January has the lowest comfort score at 5 out of 100, compared with August at 84. The main reason is that days reach only 5.4°C, 19° below the 24°C the score treats as ideal.

Quick answers

Planning a trip to Sankt Augustin?

These answers come from the same measured monthly climate record shown on this page.

When is the best time to visit Sankt Augustin?

August is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 24°C and 80 mm of rain.

What is the hottest month in Sankt Augustin?

July is hottest in this record, with a typical daytime high of 24.2°C and a night-time low of 13.7°C.

Which month has the least rain?

April has the lowest monthly rainfall total at 47 mm.

Is this a weather forecast?

No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.

Month by month

See how the weather
changes through the year.

The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.

55.4° / 0.2°

76.5° / 0.4°

2410.7° / 2.3°

4815.6° / 5.1°

6119.2° / 8.6°

7522.5° / 11.8°

8324.2° / 13.7°

8424° / 13.5°

6920° / 10.2°

4615.1° / 7.3°

239.8° / 4.1°

66.4° / 1.4°

Monthly climate evidence for Sankt Augustin — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.4°C	0.2°C	56 mm	11.2	8 h 25	5	Good coverage
February	6.5°C	0.4°C	48 mm	10.7	9 h 56	7	Good coverage
March	10.7°C	2.3°C	53 mm	10.2	11 h 42	24	Good coverage
April	15.6°C	5.1°C	47 mm	8.7	13 h 44	48	Good coverage
May	19.2°C	8.6°C	69 mm	10.2	15 h 29	61	Good coverage
June	22.5°C	11.8°C	85 mm	10.6	16 h 28	75	Good coverage
July	24.2°C	13.7°C	83 mm	11	16 h 04	83	Good coverage
August	24°C	13.5°C	80 mm	10.3	14 h 32	84	Good coverage
September	20°C	10.2°C	63 mm	9.3	12 h 33	69	Good coverage
October	15.1°C	7.3°C	64 mm	10.2	10 h 36	46	Good coverage
November	9.8°C	4.1°C	59 mm	10.7	8 h 52	23	Good coverage
December	6.4°C	1.4°C	60 mm	11.7	7 h 58	6	Good coverage

Records at BONN-ROLEBER, 2000–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.6°C2 Jan 2023	-16.4°C6 Jan 2009	33 mm28 Jan 2021	116 mm2004 · driest 15 mm in 2006	26
February	20.7°C27 Feb 2019	-15.4°C7 Feb 2012	29 mm11 Feb 2011	122 mm2002 · driest 16 mm in 2018	26
March	25.2°C31 Mar 2021	-11.9°C13 Mar 2013	30 mm5 Mar 2009	102 mm2009 · driest 8 mm in 2025	26
April	28.3°C28 Apr 2007	-5.0°C8 Apr 2003	36 mm16 Apr 2009	116 mm2005 · driest 0 mm in 2007	26
May	32.9°C29 May 2017	-1.5°C12 May 2020	41 mm7 May 2004	158 mm2024 · driest 12 mm in 2020	26
June	38.2°C27 Jun 2026	4.2°C8 Jun 2005	68 mm5 Jun 2011	201 mm2011 · driest 33 mm in 2019	26
July	40.9°C25 Jul 2019	6.6°C10 Jul 2015	71 mm14 Jul 2021	235 mm2014 · driest 12 mm in 2005	26
August	37.4°C12 Aug 2003	5.0°C30 Aug 2007	57 mm21 Aug 2007	185 mm2007 · driest 0 mm in 2003	25
September	33.0°C15 Sep 2020	1.3°C29 Sep 2018	37 mm23 Sep 2018	134 mm2001 · driest 18 mm in 2021	26
October	26.7°C2 Oct 2023	-5.7°C24 Oct 2003	32 mm29 Oct 2007	110 mm2003 · driest 20 mm in 2018	26
November	20.5°C2 Nov 2020	-7.1°C28 Nov 2010	39 mm18 Nov 2004	119 mm2001 · driest 2 mm in 2011	26
December	17.4°C31 Dec 2022	-15.5°C20 Dec 2009	22 mm22 Dec 2012	105 mm2012 · driest 3 mm in 2002	25

Typical days per month at BONN-ROLEBER, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	14	<1
February	0	0	13	1
March	0	0	9	1
April	1	0	3	1
May	4	<1	<1	2
June	9	2	0	3
July	13	3	0	3
August	11	3	0	3
September	4	<1	0	2
October	<1	0	1	2
November	0	0	4	2
December	0	0	11	<1

How often different weather occurs at BONN-ROLEBER, based on its daily record
Month	Dry days reaching 20°C	Wet days	Days with heavy rain	Weeks with 3+ wet days	Typical high by year
January	0%	36%	3%	47%	2.6–8.0°C
February	<1%	37%	3%	48%	3.2–9.7°C
March	3%	32%	4%	41%	8.7–13.7°C
April	17%	29%	4%	36%	13.0–18.8°C
May	35%	32%	7%	45%	16.7–21.2°C
June	52%	35%	8%	47%	20.8–25.4°C
July	55%	35%	9%	45%	21.9–26.7°C
August	60%	33%	8%	46%	21.6–26.7°C
September	40%	32%	6%	42%	17.9–22.7°C
October	10%	33%	5%	40%	13.4–17.7°C
November	<1%	37%	5%	51%	8.3–11.8°C
December	0%	37%	4%	51%	4.5–8.1°C

A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.

2002Each stripe is one year’s mean temperature against the 23-year average. Warmest: 2024. Coolest: 2010.2025

The evidence behind this page

Where these figures
come from.

Place identity: GeoNames 2841648
NOAA station: GME00130990 · BONN-ROLEBER
Station distance: 4.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 50.78°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

Next step

Choose your month.
Then plan the details.

The weather comparison for Sankt Augustin is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.

How travel partnerships will work

Keep exploring

Same climate evidence,
different places.

These places read the same station, so their climate numbers are identical. Their setting, population and distance from BONN-ROLEBER are not.

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Or put two places side by side: Sankt Augustin vs Bonn