Needham, United States — Weather in August 2026

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

Cfa Humid Subtropical
8.5 /10
Excellent

August is an excellent month in Needham

Climate Overview

Needham, United States in August has warm conditions, with highs averaging 27.2°C (81°F). Rain falls on about 11 days this month.

This month falls at the end of Summer.

Daily highs in August gradually drop from around 28°C (83°F) at the start to 26°C (79°F) by month's end.

August sees fairly even rainfall, totalling about 79 mm across the month.

Expect around 11.4h of sunshine at the start of August, decreasing to 10.6h by the end.

The warmest days tend to fall around the 10th, averaging 28.5°C (83°F).

Temperatures begin dropping heading into September.

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Monthly August Averages

Temperature
27°C / 19°C
Feels Like
29°C / 20°C
Rain
11 days · 78 mm
Sunshine
10.6h / day
Humidity
73% — Humid
Wind
14 km/h
Wind Direction
WSW (238°)
Gusts
35 km/h
Daylight
13.8 h
Cloud Cover
56%
Clear Sky Days
3.3
UV Index
6.5 — High
Dew Point
18°C — Humid
Moon Phase
Waxing Crescent · 3%

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 151015202531
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202531
Rainfall

Daily Sunshine

0h 3h 6h 9h 12h 151015202531
Sunshine

Daily Wind Speed

0 5 10 15 20 25 151015202531
Wind Speed
Sun Position
Sunrise 05:54
Daylight 13.9h
Sunset 19:48

What to Expect

Daytime temperatures around 27°C (81°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
3°C / -4°C
Feels Like
-1°C / -9°C
Rain
9days (94 mm) Wet
Sun
5.9h Fair
Humidity
67% Muggy
UV
2.2 Moderate
Snow Days
8days
View Details
February
Poor
Temp
5°C / -4°C
Feels Like
1°C / -9°C
Rain
10days (81 mm) Wet
Sun
6.7h Fair
Humidity
69% Muggy
UV
3.2 Moderate
Snow Days
8days
View Details
March
Poor
Temp
8°C / -1°C
Feels Like
5°C / -5°C
Rain
11days (102 mm) Wet
Sun
7.8h Good
Humidity
67% Muggy
UV
4.3 Moderate
Snow Days
4days
View Details
April
Fair
Temp
14°C / 5°C
Feels Like
11°C / 1°C
Rain
12days (103 mm) Wet
Sun
8.4h Good
Humidity
69% Muggy
UV
5.1 High
Snow Days
2days
View Details
May
Good
Temp
19°C / 10°C
Feels Like
19°C / 8°C
Rain
11days (87 mm) Wet
Sun
9.5h Good
Humidity
73% Muggy
UV
6.2 High
View Details
June best
Excellent
Temp
25°C / 16°C
Feels Like
26°C / 15°C
Rain
11days (75 mm) Wet
Sun
10.8h Excellent
Humidity
73% Muggy
UV
6.7 High
View Details
July best
Excellent
Temp
28°C / 20°C
Feels Like
31°C / 21°C
Rain
12days (102 mm) Wet
Sun
11h Excellent
Humidity
74% Muggy
UV
6.9 High
View Details
August best
Excellent
Temp
27°C / 19°C
Feels Like
29°C / 20°C
Rain
11days (78 mm) Wet
Sun
10.6h Excellent
Humidity
73% Muggy
UV
6.5 High
View Details
September best
Excellent
Temp
23°C / 15°C
Feels Like
23°C / 15°C
Rain
8days (88 mm) Wet
Sun
8.4h Good
Humidity
76% Humid
UV
5 Moderate
View Details
October best
Good
Temp
17°C / 10°C
Feels Like
16°C / 8°C
Rain
9days (104 mm) Wet
Sun
7h Good
Humidity
76% Humid
UV
3.8 Moderate
View Details
November
Poor
Temp
10°C / 3°C
Feels Like
7°C / -1°C
Rain
9days (75 mm) Wet
Sun
6.5h Fair
Humidity
71% Muggy
UV
2.6 Moderate
Snow Days
1days
View Details
December
Poor
Temp
5°C / -2°C
Feels Like
1°C / -7°C
Rain
10days (115 mm) Wet
Sun
5.5h Fair
Humidity
72% Muggy
UV
1.9 Low
Snow Days
6days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 3°C / -4°C -1°C / -9°C 9days (94 mm) Wet 5.9h Fair 67% Muggy 2.2 Moderate Poor View Details
February 5°C / -4°C 1°C / -9°C 10days (81 mm) Wet 6.7h Fair 69% Muggy 3.2 Moderate Poor View Details
March 8°C / -1°C 5°C / -5°C 11days (102 mm) Wet 7.8h Good 67% Muggy 4.3 Moderate Poor View Details
April 14°C / 5°C 11°C / 1°C 12days (103 mm) Wet 8.4h Good 69% Muggy 5.1 High Fair View Details
May 19°C / 10°C 19°C / 8°C 11days (87 mm) Wet 9.5h Good 73% Muggy 6.2 High Good View Details
June best 25°C / 16°C 26°C / 15°C 11days (75 mm) Wet 10.8h Excellent 73% Muggy 6.7 High Excellent View Details
July best 28°C / 20°C 31°C / 21°C 12days (102 mm) Wet 11h Excellent 74% Muggy 6.9 High Excellent View Details
August best 27°C / 19°C 29°C / 20°C 11days (78 mm) Wet 10.6h Excellent 73% Muggy 6.5 High Excellent View Details
September best 23°C / 15°C 23°C / 15°C 8days (88 mm) Wet 8.4h Good 76% Humid 5 Moderate Excellent View Details
October best 17°C / 10°C 16°C / 8°C 9days (104 mm) Wet 7h Good 76% Humid 3.8 Moderate Good View Details
November 10°C / 3°C 7°C / -1°C 9days (75 mm) Wet 6.5h Fair 71% Muggy 2.6 Moderate Poor View Details
December 5°C / -2°C 1°C / -7°C 10days (115 mm) Wet 5.5h Fair 72% Muggy 1.9 Low 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

August is typically excellent for visiting Needham, with average highs of 27°C (81°F) and around 11 rainy days. Needham, United States in August has warm conditions, with highs averaging 27.2°C (81°F). Rain falls on about 11 days th
Needham typically sees around 11 rainy days in August with 78 mm (3.1 in) of total rainfall. Pack a waterproof jacket.
Nights stay pleasantly warm in Needham during August, around 19°C (66°F). Light evening wear is sufficient.
With highs of 27°C (81°F) and lows of 19°C (66°F) in August, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.
Yes, August offers some of the best weather conditions in Needham with comfortable temperatures and lower chances of rain.
The average UV index in Needham during August is 7 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.
Needham gets approximately 14 hours of daylight per day in August, with around 11 hours of sunshine.
Snow is uncommon in Needham during August based on 10-year climate averages.

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