8.2 /10
Excellent

May is an excellent month in Rowlett

Climate Overview

Rowlett, United States in May has hot conditions, with highs reaching 28.1°C (83°F) and afternoons the warmest part of the day. Rain falls on about 12 days this month.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 27°C (80°F) at the start to 30°C (86°F) by month's end.

May sees fairly even rainfall, totalling about 149 mm across the month.

Expect around 9.6h of sunshine at the start of May, increasing to 10.6h by the end.

Wind speeds ease off through the month, from 22 km/h (14 mph) to 19 km/h (12 mph).

The warmest days tend to fall around the 28th, averaging 29.8°C (86°F).

Compared to April, this month is about 4°C warmer with 1 more rainy days. Temperatures will rise further into June.

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Monthly May Averages

Temperature
28°C / 19°C
Feels Like
30°C / 20°C
Rain
12 days · 150 mm
Sunshine
9.9h / day
Humidity
73% — Muggy
Wind
21 km/h
Wind Direction
SE (140°)
Gusts
40 km/h
Daylight
13.9 h
Cloud Cover
58%
Clear Sky Days
4.8
UV Index
7.4 — Very High
Dew Point
18°C — Humid
Moon Phase
Waxing Gibbous · 66%

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 8 mm 10 mm 151015202531
Rainfall

Daily Sunshine

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

Daily Wind Speed

0 6 12 18 24 30 151015202531
Wind Speed
Sun Position
Sunrise 06:29
Daylight 13.8h
Sunset 20:19

What to Expect

Daytime temperatures around 28°C (83°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain most often builds later in the day, so mornings are typically the driest window and afternoon showers are more likely.

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

Compare Months

January
Fair
Temp
14°C / 4°C
Feels Like
11°C / 0°C
Rain
7days (67 mm) Good
Sun
7h Good
Humidity
67% Muggy
UV
3.6 Moderate
Snow Days
1days
February
Fair
Temp
16°C / 6°C
Feels Like
14°C / 2°C
Rain
9days (92 mm) Wet
Sun
6.7h Fair
Humidity
70% Muggy
UV
4.4 Moderate
Snow Days
1days
March
Good
Temp
21°C / 11°C
Feels Like
20°C / 8°C
Rain
10days (110 mm) Wet
Sun
8.2h Good
Humidity
67% Muggy
UV
6 High
April best
Excellent
Temp
24°C / 14°C
Feels Like
24°C / 12°C
Rain
11days (150 mm) Wet
Sun
8.9h Good
Humidity
68% Muggy
UV
6.4 High
May best
Excellent
Temp
28°C / 19°C
Feels Like
30°C / 20°C
Rain
12days (150 mm) Wet
Sun
9.9h Good
Humidity
73% Muggy
UV
7.4 Very High
June
Fair
Temp
32°C / 23°C
Feels Like
36°C / 26°C
Rain
10days (86 mm) Wet
Sun
11.8h Excellent
Humidity
70% Muggy
UV
8.1 Very High
July
Poor
Temp
35°C / 26°C
Feels Like
39°C / 29°C
Rain
7days (45 mm) Good
Sun
12.4h Excellent
Humidity
62% Muggy
UV
8 Very High
August
Poor
Temp
35°C / 26°C
Feels Like
38°C / 29°C
Rain
7days (85 mm) Good
Sun
11.4h Excellent
Humidity
61% Muggy
UV
7.9 Very High
September
Good
Temp
32°C / 22°C
Feels Like
34°C / 24°C
Rain
6days (60 mm) Good
Sun
10.1h Excellent
Humidity
63% Muggy
UV
6.7 High
October best
Excellent
Temp
27°C / 17°C
Feels Like
27°C / 16°C
Rain
7days (110 mm) Good
Sun
8.9h Good
Humidity
61% Muggy
UV
5.5 High
November
Good
Temp
20°C / 11°C
Feels Like
19°C / 8°C
Rain
7days (77 mm) Good
Sun
7.6h Good
Humidity
69% Muggy
UV
4 Moderate
December
Fair
Temp
16°C / 7°C
Feels Like
14°C / 4°C
Rain
7days (68 mm) Good
Sun
6.5h Fair
Humidity
70% Muggy
UV
3.4 Moderate
Month Temp Feels Like Rain Sun Humidity UV Status Details
January 14°C / 4°C 11°C / 0°C 7days (67 mm) Good 7h Good 67% Muggy 3.6 Moderate Fair View Details
February 16°C / 6°C 14°C / 2°C 9days (92 mm) Wet 6.7h Fair 70% Muggy 4.4 Moderate Fair View Details
March 21°C / 11°C 20°C / 8°C 10days (110 mm) Wet 8.2h Good 67% Muggy 6 High Good View Details
April best 24°C / 14°C 24°C / 12°C 11days (150 mm) Wet 8.9h Good 68% Muggy 6.4 High Excellent View Details
May best 28°C / 19°C 30°C / 20°C 12days (150 mm) Wet 9.9h Good 73% Muggy 7.4 Very High Excellent View Details
June 32°C / 23°C 36°C / 26°C 10days (86 mm) Wet 11.8h Excellent 70% Muggy 8.1 Very High Fair View Details
July 35°C / 26°C 39°C / 29°C 7days (45 mm) Good 12.4h Excellent 62% Muggy 8 Very High Poor View Details
August 35°C / 26°C 38°C / 29°C 7days (85 mm) Good 11.4h Excellent 61% Muggy 7.9 Very High Poor View Details
September 32°C / 22°C 34°C / 24°C 6days (60 mm) Good 10.1h Excellent 63% Muggy 6.7 High Good View Details
October best 27°C / 17°C 27°C / 16°C 7days (110 mm) Good 8.9h Good 61% Muggy 5.5 High Excellent View Details
November 20°C / 11°C 19°C / 8°C 7days (77 mm) Good 7.6h Good 69% Muggy 4 Moderate Good View Details
December 16°C / 7°C 14°C / 4°C 7days (68 mm) Good 6.5h Fair 70% Muggy 3.4 Moderate Fair 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

May is typically excellent for visiting Rowlett, with average highs of 28°C (83°F) and around 12 rainy days. Rowlett, United States in May has hot conditions, with highs reaching 28.1°C (83°F) and afternoons the warmest part of t
Rowlett typically sees around 12 rainy days in May with 150 mm (5.9 in) of total rainfall. Pack a waterproof jacket.
Nights stay pleasantly warm in Rowlett during May, around 19°C (66°F). Light evening wear is sufficient.
With highs of 28°C (83°F) and lows of 19°C (66°F) in May, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.
Yes, May offers some of the best weather conditions in Rowlett with comfortable temperatures and lower chances of rain.
The average UV index in Rowlett during May is 7 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.
Rowlett gets approximately 14 hours of daylight per day in May, with around 10 hours of sunshine.
Snow is uncommon in Rowlett during May based on 10-year climate averages.

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