Vietnam · 1991–2020

Best time to visit
Bỉm Sơn

For Bỉm Sơn, December has the most comfortable weather in our climate comparison. Typical daytime highs are 22.1°C, nights average 16°C, and rainfall totals about 29 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthDecember

Typical daytime high22.1°C

Typical night-time low16°C

December rainfall29 mm

Overall comfort

December

Other strong months: February and March

91/100 weather score

Beach weather

April

Other strong months: November and March

87/100 weather score

Outdoor sightseeing

January

Other strong months: February and December

90/100 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 10

6 months fit your choices for Bỉm Sơn

January20.2°C day · 26 mm rain · 3.7 wet days

February20.9°C day · 11 mm rain · 3.6 wet days

March23.2°C day · 39 mm rain · 6.6 wet days

April27.5°C day · 53 mm rain · 5.6 wet days

November25.8°C day · 84 mm rain · 4.6 wet days

December22.1°C day · 29 mm rain · 3.7 wet days

September has the lowest comfort score at 13 out of 100, compared with December at 91. The main reason is that 321 mm of rain falls.

Quick answers

Planning a trip to Bỉm Sơn?

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

When is the best time to visit Bỉm Sơn?

December is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 22.1°C and 29 mm of rain.

What is the hottest month in Bỉm Sơn?

June is hottest in this record, with a typical daytime high of 33.6°C and a night-time low of 26.6°C.

Which month has the least rain?

February has the lowest monthly rainfall total at 11 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.

8620.2° / 15.2°

8720.9° / 16.5°

8723.2° / 18.5°

7127.5° / 21.9°

4131.1° / 24.6°

3033.6° / 26.6°

1733.1° / 26.5°

1432° / 25.6°

1330.6° / 24.6°

4028.8° / 22.7°

7725.8° / 19.7°

9122.1° / 16°

Monthly climate evidence for Bỉm Sơn — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 36 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	20.2°C	15.2°C	26 mm	3.7	20.8°C	11 h 02	86	Good coverage
February	20.9°C	16.5°C	11 mm	3.6	20.4°C	11 h 27	87	Good coverage
March	23.2°C	18.5°C	39 mm	6.6	21.2°C	11 h 59	87	Good coverage
April	27.5°C	21.9°C	53 mm	5.6	23.7°C	12 h 35	71	Good coverage
May	31.1°C	24.6°C	135 mm	8	27.5°C	13 h 04	41	Good coverage
June	33.6°C	26.6°C	130 mm	7.4	29.4°C	13 h 20	30	Good coverage
July	33.1°C	26.5°C	222 mm	9.2	29.6°C	13 h 14	17	Good coverage
August	32°C	25.6°C	272 mm	11.4	29.9°C	12 h 49	14	Good coverage
September	30.6°C	24.6°C	321 mm	11.9	29.4°C	12 h 14	13	Good coverage
October	28.8°C	22.7°C	214 mm	8.8	27.9°C	11 h 39	40	Good coverage
November	25.8°C	19.7°C	84 mm	4.6	25.6°C	11 h 09	77	Good coverage
December	22.1°C	16°C	29 mm	3.7	22.8°C	10 h 55	91	Good coverage

Records at THANH HOA, 1975–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	29.0°C21 Jan 1976	6.2°C25 Jan 2016	49 mm25 Jan 2020	118 mm2016 · driest 0 mm in 1993	37
February	34.1°C25 Feb 2010	6.7°C2 Feb 2008	33 mm9 Feb 2021	62 mm2022 · driest 0 mm in 1994	37
March	35.5°C14 Mar 2007	9.0°C17 Mar 2011	87 mm21 Mar 2017	154 mm2001 · driest 0 mm in 1994	37
April	40.1°C30 Apr 2024	8.0°C7 Apr 1976	113 mm24 Apr 1997	211 mm1997 · driest 0 mm in 1994	38
May	41.0°C19 May 2019	18.0°C5 May 2004	165 mm24 May 2006	350 mm2006 · driest 10 mm in 1993	39
June	40.0°C29 Jun 2019	21.0°C11 Jun 1976	183 mm15 Jun 1997	379 mm2011 · driest 1 mm in 1993	39
July	40.0°C5 Jul 2018	21.4°C12 Jul 1993	312 mm16 Jul 1994	725 mm1994 · driest 0 mm in 2020	38
August	38.4°C7 Aug 2021	19.0°C23 Aug 1996	240 mm14 Aug 1996	689 mm2010 · driest 0 mm in 1992	38
September	37.5°C1 Sep 2011	20.2°C12 Sep 2006	250 mm11 Sep 2007	578 mm2024 · driest 2 mm in 1999	37
October	36.0°C10 Oct 2011	14.9°C24 Oct 1994	277 mm15 Oct 1999	604 mm1999 · driest 0 mm in 1992	38
November	33.4°C26 Nov 1997	9.0°C26 Nov 1975	218 mm5 Nov 1996	542 mm1996 · driest 0 mm in 1992	38
December	36.4°C18 Dec 2002	6.0°C30 Dec 1975	92 mm27 Dec 2004	128 mm2018 · driest 0 mm in 1992	38

Typical days per month at THANH HOA, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	4	0	<1
February	4	<1	0
March	9	<1	<1
April	21	5	1
May	27	19	3
June	27	25	3
July	28	26	5
August	28	24	6
September	28	20	6
October	26	11	4
November	18	2	1
December	5	0	<1

How often different weather occurs at THANH HOA, 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	50%	13%	2%	12%	18.0–21.7°C
February	54%	14%	<1%	12%	18.1–23.1°C
March	68%	21%	3%	25%	21.6–25.5°C
April	81%	18%	4%	14%	25.9–29.4°C
May	72%	26%	11%	32%	29.6–32.2°C
June	74%	25%	10%	32%	32.3–35.1°C
July	70%	31%	17%	45%	31.8–34.5°C
August	62%	38%	19%	56%	31.1–33.0°C
September	59%	41%	23%	60%	29.7–31.4°C
October	71%	29%	14%	32%	27.6–29.6°C
November	83%	15%	6%	14%	23.7–27.3°C
December	67%	12%	2%	7%	20.4–23.6°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.

The evidence behind this page

Where these figures
come from.

Place identity: GeoNames 1587919
NOAA station: VMM00048840 · THANH HOA
Station distance: 37.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 20.08°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 36 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 Bỉm Sơn 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 THANH HOA are not.

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Or put two places side by side: Bỉm Sơn vs Thanh Hóa