Adelphi, United States — Weather in June 2026

Monthly climate averages for Adelphi, United States. Based on 10-year ERA5 reanalysis data.

Cfa Humid Subtropical
8.4 /10
Excellent

June is an excellent month in Adelphi

Climate Overview

Adelphi, United States in June has hot conditions, with highs reaching 28.5°C (83°F) and afternoons the warmest part of the day. Rain falls on about 11 days this month.

This month falls at the beginning of Summer.

Daily highs in June gradually rise from around 27°C (81°F) at the start to 30°C (87°F) by month's end.

June sees fairly even rainfall, totalling about 114 mm across the month.

Expect around 11.3h of sunshine at the start of June, increasing to 12.5h by the end.

The warmest days tend to fall around the 30th, averaging 31°C (88°F).

Compared to May, this month is about 5°C warmer with 2 fewer rainy days. Temperatures will rise further into July.

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Monthly June Averages

Temperature
29°C / 19°C
Feels Like
31°C / 20°C
Rain
11 days · 112 mm
Sunshine
11.4h / day
Humidity
69% — Muggy
Wind
14 km/h
Wind Direction
WSW (241°)
Gusts
35 km/h
Daylight
14.9 h
Cloud Cover
60%
Clear Sky Days
2.6
UV Index
7.4 — Very High
Dew Point
18°C — Humid
Moon Phase
New Moon · 0%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

36°C 32°C 28°C 24°C 20°C 16°C 12°C 151015202530
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 8 mm 151015202530
Rainfall

Daily Sunshine

0h 4h 8h 12h 16h 151015202530
Sunshine

Daily Wind Speed

0 5 10 15 20 25 151015202530
Wind Speed
Sun Position
Sunrise 05:43
Daylight 14.9h
Sunset 20:36

What to Expect

Daytime temperatures around 29°C (83°F) are ideal for full-day outdoor exploration.

Rain usually comes in shorter passing showers rather than all-day rain.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

January
Poor
Temp
6°C / -1°C
Feels Like
3°C / -6°C
Rain
10days (84 mm) Wet
Sun
6.2h Fair
Humidity
68% Muggy
UV
2.6 Moderate
Snow Days
4days
View Details
February
Poor
Temp
10°C / 1°C
Feels Like
6°C / -3°C
Rain
10days (88 mm) Wet
Sun
6.7h Fair
Humidity
67% Muggy
UV
3.5 Moderate
Snow Days
4days
View Details
March
Fair
Temp
14°C / 4°C
Feels Like
11°C / 0°C
Rain
10days (84 mm) Wet
Sun
8.2h Good
Humidity
64% Muggy
UV
5 Moderate
Snow Days
2days
View Details
April best
Good
Temp
19°C / 9°C
Feels Like
18°C / 6°C
Rain
9days (84 mm) Wet
Sun
9.1h Good
Humidity
65% Muggy
UV
5.8 High
View Details
May best
Excellent
Temp
23°C / 14°C
Feels Like
24°C / 13°C
Rain
13days (118 mm) Wet
Sun
9.3h Good
Humidity
73% Muggy
UV
6.5 High
View Details
June best
Excellent
Temp
29°C / 19°C
Feels Like
31°C / 20°C
Rain
11days (112 mm) Wet
Sun
11.4h Excellent
Humidity
69% Muggy
UV
7.4 Very High
View Details
July
Fair
Temp
31°C / 22°C
Feels Like
35°C / 25°C
Rain
14days (152 mm) Wet
Sun
11.8h Excellent
Humidity
72% Muggy
UV
7.6 Very High
View Details
August
Good
Temp
29°C / 21°C
Feels Like
33°C / 23°C
Rain
12days (104 mm) Wet
Sun
10.6h Excellent
Humidity
74% Muggy
UV
6.8 High
View Details
September best
Excellent
Temp
26°C / 18°C
Feels Like
28°C / 19°C
Rain
11days (97 mm) Wet
Sun
8.6h Good
Humidity
74% Muggy
UV
5.2 High
View Details
October best
Excellent
Temp
21°C / 12°C
Feels Like
20°C / 11°C
Rain
8days (78 mm) Wet
Sun
7.9h Good
Humidity
72% Muggy
UV
4.5 Moderate
View Details
November
Fair
Temp
14°C / 5°C
Feels Like
11°C / 2°C
Rain
8days (70 mm) Wet
Sun
7.2h Good
Humidity
68% Muggy
UV
3.1 Moderate
Snow Days
1days
View Details
December
Poor
Temp
8°C / 1°C
Feels Like
5°C / -3°C
Rain
9days (98 mm) Wet
Sun
5.9h Fair
Humidity
70% Muggy
UV
2.3 Moderate
Snow Days
2days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 6°C / -1°C 3°C / -6°C 10days (84 mm) Wet 6.2h Fair 68% Muggy 2.6 Moderate Poor View Details
February 10°C / 1°C 6°C / -3°C 10days (88 mm) Wet 6.7h Fair 67% Muggy 3.5 Moderate Poor View Details
March 14°C / 4°C 11°C / 0°C 10days (84 mm) Wet 8.2h Good 64% Muggy 5 Moderate Fair View Details
April best 19°C / 9°C 18°C / 6°C 9days (84 mm) Wet 9.1h Good 65% Muggy 5.8 High Good View Details
May best 23°C / 14°C 24°C / 13°C 13days (118 mm) Wet 9.3h Good 73% Muggy 6.5 High Excellent View Details
June best 29°C / 19°C 31°C / 20°C 11days (112 mm) Wet 11.4h Excellent 69% Muggy 7.4 Very High Excellent View Details
July 31°C / 22°C 35°C / 25°C 14days (152 mm) Wet 11.8h Excellent 72% Muggy 7.6 Very High Fair View Details
August 29°C / 21°C 33°C / 23°C 12days (104 mm) Wet 10.6h Excellent 74% Muggy 6.8 High Good View Details
September best 26°C / 18°C 28°C / 19°C 11days (97 mm) Wet 8.6h Good 74% Muggy 5.2 High Excellent View Details
October best 21°C / 12°C 20°C / 11°C 8days (78 mm) Wet 7.9h Good 72% Muggy 4.5 Moderate Excellent View Details
November 14°C / 5°C 11°C / 2°C 8days (70 mm) Wet 7.2h Good 68% Muggy 3.1 Moderate Fair View Details
December 8°C / 1°C 5°C / -3°C 9days (98 mm) Wet 5.9h Fair 70% Muggy 2.3 Moderate Poor View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

June is typically excellent for visiting Adelphi, with average highs of 29°C (83°F) and around 11 rainy days. Adelphi, United States in June has hot conditions, with highs reaching 28.5°C (83°F) and afternoons the warmest part of
Adelphi typically sees around 11 rainy days in June with 112 mm (4.4 in) of total rainfall. Pack a waterproof jacket.
Nights stay pleasantly warm in Adelphi during June, around 19°C (66°F). Light evening wear is sufficient.
With highs of 29°C (83°F) and lows of 19°C (66°F) in June, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.
Yes, June offers some of the best weather conditions in Adelphi with comfortable temperatures and lower chances of rain.
The average UV index in Adelphi during June is 7 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.
Adelphi gets approximately 15 hours of daylight per day in June, with around 11 hours of sunshine.
Snow is uncommon in Adelphi during June based on 10-year climate averages.

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