United States · 1991–2020

Best time to visit
Saint Johns.

May leads for comfortable weather in Saint Johns: typically 26.6°C by day, 7.1°C at night, with 8 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high26.6°C

Typical low7.1°C

Rain in May8 mm

Comfort

May

May · September · October

77climate match

Beach

August

August · July · September

73climate match

Outdoors

April

April · October · May

82climate match

The weakest month is December, scoring 13 against May’s 77 — days reach only 9.6°C, 14° below the 24°C the score treats as ideal, and nights drop to -6.8°C.

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

1510.1° / -6.6°

Feb

2812.9° / -4.7°

Mar

4917.5° / -1.5°

Apr

7021.7° / 2.4°

May

7726.6° / 7.1°

Jun

6632.8° / 12.4°

Jul

6333.1° / 16.7°

Aug

7131.3° / 15.3°

Sep

7628.6° / 10.8°

Oct

7422.5° / 3.6°

Nov

4115.9° / -2.8°

Dec

139.6° / -6.8°

Monthly climate evidence for Saint Johns — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	10.1°C	-6.6°C	10 mm	2.6	10 h 05	15	Good coverage
February	12.9°C	-4.7°C	10 mm	2.5	10 h 53	28	Good coverage
March	17.5°C	-1.5°C	11 mm	2.4	11 h 52	49	Good coverage
April	21.7°C	2.4°C	8 mm	2	13 h 00	70	Good coverage
May	26.6°C	7.1°C	8 mm	1.6	13 h 57	77	Good coverage
June	32.8°C	12.4°C	4 mm	0.9	14 h 27	66	Good coverage
July	33.1°C	16.7°C	40 mm	7	14 h 15	63	Good coverage
August	31.3°C	15.3°C	42 mm	6.4	13 h 27	71	Good coverage
September	28.6°C	10.8°C	23 mm	4.1	12 h 21	76	Good coverage
October	22.5°C	3.6°C	17 mm	3.4	11 h 15	74	Good coverage
November	15.9°C	-2.8°C	12 mm	2.5	10 h 19	41	Good coverage
December	9.6°C	-6.8°C	12 mm	2.8	9 h 51	13	Good coverage

Records at ST JOHNS IND AIR PK, 1999–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C7 Jan 2003	-29.9°C1 Jan 2011	12 mm22 Jan 2010	36 mm2015 · driest 0 mm in 2014	25
February	25.0°C17 Feb 2016	-23.2°C3 Feb 2011	15 mm15 Feb 2018	42 mm2005 · driest 0 mm in 2002	25
March	32.8°C21 Mar 2026	-18.8°C13 Mar 2006	19 mm11 Mar 2018	33 mm2006 · driest 0 mm in 2016	25
April	31.1°C24 Apr 2012	-8.2°C11 Apr 2011	14 mm13 Apr 2020	28 mm2004 · driest 0 mm in 2011	25
May	37.2°C20 May 2005	-5.5°C3 May 2011	16 mm22 May 2008	33 mm2019 · driest 0 mm in 2006	25
June	40.0°C20 Jun 2016	0.0°C9 Jun 2020	14 mm10 Jun 2019	17 mm2019 · driest 0 mm in 2011	25
July	41.7°C18 Jul 2005	8.3°C3 Jul 2026	37 mm23 Jul 2021	102 mm2021 · driest 0 mm in 2000	25
August	38.3°C10 Aug 2003	7.2°C25 Aug 2002	63 mm4 Aug 2007	127 mm2007 · driest 0 mm in 2000	24
September	36.7°C6 Sep 2020	-2.1°C28 Sep 2013	29 mm10 Sep 2002	80 mm2002 · driest 0 mm in 2000	24
October	33.3°C1 Oct 2003	-14.3°C31 Oct 2019	20 mm23 Oct 2000	74 mm2000 · driest 0 mm in 2017	24
November	27.8°C10 Nov 2005	-18.8°C30 Nov 2006	26 mm4 Nov 2016	42 mm2019 · driest 0 mm in 2017	24
December	22.2°C22 Dec 2025	-21.1°C13 Dec 2001	25 mm4 Dec 2014	43 mm2014 · driest 0 mm in 2024	25

Typical days per month at ST JOHNS IND AIR PK, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	28	<1
February	0	0	24	<1
March	2	0	20	<1
April	9	<1	9	0
May	22	8	2	<1
June	29	25	0	0
July	31	26	0	1
August	30	22	0	1
September	27	12	<1	<1
October	12	<1	7	<1
November	<1	0	23	<1
December	0	0	29	<1

How often, not how much — every day in ST JOHNS IND AIR PK’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	2%	8%	<1%	3%	7.3–12.9°C
February	10%	9%	<1%	5%	10.0–16.3°C
March	38%	7%	<1%	4%	15.4–20.0°C
April	70%	6%	<1%	2%	20.4–23.4°C
May	90%	5%	<1%	2%	24.1–28.8°C
June	97%	3%	<1%	<1%	31.1–34.3°C
July	77%	23%	3%	32%	31.2–34.6°C
August	79%	21%	3%	20%	29.7–32.9°C
September	85%	14%	2%	13%	27.1–30.2°C
October	70%	11%	2%	9%	20.1–25.0°C
November	29%	8%	<1%	5%	14.1–18.4°C
December	2%	8%	<1%	3%	7.0–12.8°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.

2000Each stripe is one year’s mean temperature against the 23-year average. Warmest: 2003. Coolest: 2011.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5312595
NOAA station: USW00093027 · ST JOHNS IND AIR PK
Station distance: 2.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 34.51°, 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.

Validated places to explore

Tokyo→Bangkok→Reykjavik→Lisbon→

Best time to visitSaint Johns.

May

August

April

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Saint Johns.

The whole year,
without the guesswork.

Nearby, measured,
and named.