United States · 1991–2020

Best time to visit
Sweeny.

April leads for comfortable weather in Sweeny: typically 26.2°C by day, 15.7°C at night, with 58 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high26.2°C

Typical low15.7°C

Rain in April58 mm

Comfort

April

April · March · November

87climate match

Beach

May

May · April · June

82climate match

Outdoors

February

February · December · March

95climate match

The weakest month is July, scoring 38 against April’s 87 — days average 33.2°C, 9° above the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

5518.2° / 6.7°

Feb

7320° / 9.1°

Mar

8523.1° / 12.3°

Apr

8726.2° / 15.7°

May

6329.7° / 19.9°

Jun

4832.3° / 22.7°

Jul

3833.2° / 23.5°

Aug

3933.9° / 23.4°

Sep

4331.7° / 21.5°

Oct

7028.2° / 16.1°

Nov

8023.3° / 11.2°

Dec

6119.2° / 7.6°

Monthly climate evidence for Sweeny — 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	18.2°C	6.7°C	88 mm	6.4	16.1°C	10 h 28	55	Good coverage
February	20°C	9.1°C	45 mm	4.9	16.1°C	11 h 07	73	Good coverage
March	23.1°C	12.3°C	72 mm	4.5	18.3°C	11 h 55	85	Good coverage
April	26.2°C	15.7°C	58 mm	4.3	21.5°C	12 h 50	87	Good coverage
May	29.7°C	19.9°C	93 mm	4.8	25.2°C	13 h 35	63	Good coverage
June	32.3°C	22.7°C	93 mm	6.3	28.4°C	13 h 59	48	Good coverage
July	33.2°C	23.5°C	112 mm	8.9	29.4°C	13 h 50	38	Good coverage
August	33.9°C	23.4°C	107 mm	7.1	29.8°C	13 h 11	39	Good coverage
September	31.7°C	21.5°C	146 mm	8.2	29.0°C	12 h 18	43	Good coverage
October	28.2°C	16.1°C	117 mm	6.2	25.9°C	11 h 25	70	Good coverage
November	23.3°C	11.2°C	95 mm	6.3	21.8°C	10 h 40	80	Good coverage
December	19.2°C	7.6°C	86 mm	6.7	18.3°C	10 h 18	61	Good coverage

Records at ANGLETON LK JACKSON BRAZORIA C, 1998–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	28.9°C16 Jan 2012	-7.7°C7 Jan 2014	93 mm22 Jan 2015	205 mm2008 · driest 7 mm in 2009	28
February	30.0°C23 Feb 2023	-9.3°C16 Feb 2021	49 mm10 Feb 2018	135 mm2012 · driest 5 mm in 1999	27
March	31.7°C15 Mar 2008	-6.1°C4 Mar 2002	105 mm28 Mar 2006	200 mm2007 · driest 6 mm in 2013	27
April	34.4°C27 Apr 2011	0.0°C7 Apr 2009	76 mm16 Apr 2012	148 mm2016 · driest 1 mm in 2011	28
May	35.6°C31 May 1998	4.4°C4 May 2013	162 mm12 May 2015	261 mm2016 · driest 1 mm in 2003	28
June	39.4°C29 Jun 2013	11.1°C22 Jun 2008	89 mm17 Jun 2026	285 mm2004 · driest 9 mm in 2005	29
July	38.3°C10 Jul 2022	18.3°C26 Jul 2019	104 mm8 Jul 2024	352 mm2024 · driest 13 mm in 1998	29
August	41.7°C27 Aug 2023	16.1°C13 Aug 2004	180 mm25 Aug 2017	543 mm2017 · driest 8 mm in 2023	28
September	42.2°C5 Sep 2000	9.4°C26 Sep 2000	115 mm17 Sep 2019	431 mm2018 · driest 3 mm in 2017	28
October	35.0°C8 Oct 2017	0.6°C29 Oct 2017	206 mm15 Oct 2006	377 mm2006 · driest 4 mm in 2010	28
November	31.1°C7 Nov 2017	-2.1°C21 Nov 2006	81 mm17 Nov 2003	286 mm2000 · driest 11 mm in 2017	28
December	28.9°C25 Dec 2015	-7.1°C24 Dec 2022	106 mm7 Dec 2018	243 mm2002 · driest 9 mm in 2013	28

Typical days per month at ANGLETON LK JACKSON BRAZORIA C, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	4	0	4	3
February	6	0	2	2
March	12	<1	<1	2
April	22	2	0	2
May	30	17	0	3
June	29	27	0	3
July	31	29	0	3
August	31	29	0	3
September	29	24	0	4
October	26	12	0	3
November	14	1	<1	3
December	6	0	3	3

How often, not how much — every day in ANGLETON LK JACKSON BRAZORIA C’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	36%	21%	8%	18%	15.5–21.1°C
February	52%	16%	5%	8%	17.0–22.7°C
March	75%	14%	7%	9%	21.0–25.2°C
April	83%	14%	6%	9%	25.3–27.8°C
May	83%	17%	9%	18%	28.5–31.2°C
June	77%	23%	10%	26%	31.5–33.5°C
July	71%	29%	11%	30%	31.8–35.0°C
August	77%	23%	9%	27%	32.9–35.0°C
September	73%	26%	12%	29%	30.3–33.8°C
October	79%	20%	10%	22%	27.3–29.8°C
November	65%	20%	9%	21%	20.7–25.8°C
December	41%	21%	8%	16%	17.8–22.1°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1999Each stripe is one year’s mean temperature against the 26-year average. Warmest: 2017. Coolest: 2014.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4735190
NOAA station: USW00012976 · ANGLETON LK JACKSON BRAZORIA C
Station distance: 24.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 29.04°, 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.

These places read the same station, so their numbers are identical — distance from ANGLETON LK JACKSON BRAZORIA C is what differs

West Columbia→Richwood→Brazoria→Wild Peach Village→Bastrop Beach→East Columbia→

Or put two places side by side: Sweeny vs West Columbia

Best time to visitSweeny.

April

May

February

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Sweeny.

The whole year,
without the guesswork.

Nearby, measured,
and named.