Newport weather in September: Newport, Rhode Island: normal highs, lows, rain and records for September
Newport in September has a normal high of 72°F and a normal low of 57°F, a daily mean of 65°F, falling from 77°F on the 1st to 68°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 3.44 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 22°C and low of 14°C, 87 mm of precipitation in September.
- NOAA stationNewport State Airport
- Station IDUSW00014787
- Location41.53°N 71.28°W
- Elevation172 ft (52 m)
- From the center4 miles
- Population24,482
- Jan 38° 24°
- Feb 40° 25°
- Mar 46° 31°
- Apr 56° 39°
- May 65° 49°
- Jun 74° 58°
- Jul 80° 64°
- Aug 79° 64°
- Sep 72° 57°
- Oct 62° 47°
- Nov 53° 38°
- Dec 44° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Newport in September?
The normal high is 72°F and the normal low 57°F, for a daily mean of 64.7°F. September is 6.5°F cooler than August and 10.2°F warmer than October. September is the 4th warmest month of the year in Newport and the 6th wettest. Across the month the normal high falls 9°F, from 77°F on September 1 to 68°F on September 30. From one year to the next September's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 63°F and 67°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 77°F | 61°F | 33% | 17% |
| September 8 | 75°F | 60°F | 33% | 17% |
| September 15 | 73°F | 58°F | 34% | 18% |
| September 22 | 70°F | 55°F | 35% | 19% |
| September 30 | 68°F | 52°F | 37% | 21% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 77°F | 61°F | 33% | 17% | 13 h 10 min |
| September 2 | 76°F | 61°F | 33% | 17% | 13 h 10 min |
| September 3 | 76°F | 61°F | 33% | 17% | 13 h 10 min |
| September 4 | 76°F | 61°F | 33% | 17% | 13 h |
| September 5 | 76°F | 60°F | 33% | 17% | 13 h |
| September 6 | 75°F | 60°F | 33% | 17% | 13 h |
| September 7 | 75°F | 60°F | 33% | 17% | 12 h 50 min |
| September 8 | 75°F | 60°F | 33% | 17% | 12 h 50 min |
| September 9 | 75°F | 59°F | 33% | 17% | 12 h 50 min |
| September 10 | 74°F | 59°F | 34% | 17% | 12 h 50 min |
| September 11 | 74°F | 59°F | 34% | 17% | 12 h 40 min |
| September 12 | 74°F | 58°F | 34% | 18% | 12 h 40 min |
| September 13 | 73°F | 58°F | 34% | 18% | 12 h 40 min |
| September 14 | 73°F | 58°F | 34% | 18% | 12 h 40 min |
| September 15 | 73°F | 58°F | 34% | 18% | 12 h 30 min |
| September 16 | 72°F | 57°F | 34% | 18% | 12 h 30 min |
| September 17 | 72°F | 57°F | 35% | 18% | 12 h 30 min |
| September 18 | 72°F | 57°F | 35% | 19% | 12 h 20 min |
| September 19 | 71°F | 56°F | 35% | 19% | 12 h 20 min |
| September 20 | 71°F | 56°F | 35% | 19% | 12 h 20 min |
| September 21 | 71°F | 55°F | 35% | 19% | 12 h 20 min |
| September 22 | 70°F | 55°F | 35% | 19% | 12 h 10 min |
| September 23 | 70°F | 55°F | 36% | 19% | 12 h 10 min |
| September 24 | 70°F | 54°F | 36% | 20% | 12 h 10 min |
| September 25 | 69°F | 54°F | 36% | 20% | 12 h 10 min |
| September 26 | 69°F | 54°F | 36% | 20% | 12 h |
| September 27 | 69°F | 53°F | 36% | 20% | 12 h |
| September 28 | 68°F | 53°F | 37% | 20% | 12 h |
| September 29 | 68°F | 53°F | 37% | 20% | 11 h 50 min |
| September 30 | 68°F | 52°F | 37% | 21% | 11 h 50 min |
- Normal high
- 72°FSeptember average
- Normal low
- 57°FSeptember average
- Precipitation
- 3.44 inmonth total
- Days with precipitation
- 100.01 inch or more
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 22
- Days at 80°F or more
- 3
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014787; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Newport in September?
On a given September day the chance of 0.01 inch or more is 35% on average, highest around September 30 (37%). In all, 3.44 in falls on 10 days of a normal September, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014787.
What are the records for September in Newport?
The warmest September temperature on this station's record (since 1996) is 91°F, on September 9, 2016; the coldest is 39°F, on September 29, 2000. The wettest September brought 9.38 in (2021).
The September mean against the 1991-2020 normal of 64.7°F: 2021 66.5°F (+1.8), 2022 64.1°F (−0.6), 2023 65.8°F (+1.1), 2024 63.4°F (−1.3). 2 of 4 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 66.5°F | +1.8°F | 9.38 in |
| 2022 | 64.1°F | −0.6°F | 4.85 in |
| 2023 | 65.8°F | +1.1°F | 5.62 in |
| 2024 | 63.4°F | −1.3°F | 3.45 in |
Source: records: ACIS, station USW00014787; recent months: ACIS, station USW00014787. Records and recent months use complete months only.
How does September in Newport compare across Rhode Island?
Across the 6 places PlainClimate covers in Rhode Island, September normal highs run from 72°F in Newport to 77°F in Tiverton; Newport's is 72°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.