Kodiak weather in September: Kodiak, Alaska: normal highs, lows, rain and records for September
Kodiak in September has a normal high of 57°F and a normal low of 44°F, a daily mean of 51°F, falling from 61°F on the 1st to 53°F by the 30th. Measurable precipitation falls on 17 days in a normal September, 7.55 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 14°C and low of 7°C, 192 mm of precipitation in September.
- NOAA stationKodiak Airport
- Station IDUSW00025501
- Location57.75°N 152.49°W
- Elevation80 ft (24 m)
- Population5,399
- Jan 36° 26°
- Feb 38° 27°
- Mar 39° 28°
- Apr 45° 34°
- May 52° 40°
- Jun 57° 46°
- Jul 62° 51°
- Aug 63° 50°
- Sep 57° 44°
- Oct 48° 36°
- Nov 41° 30°
- Dec 37° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Kodiak in September?
The normal high is 57°F and the normal low 44°F, for a daily mean of 50.6°F. September is 5.9°F cooler than August and 8.4°F warmer than October. September is the 4th warmest month of the year in Kodiak and the 4th wettest. Across the month the normal high falls 8°F, from 61°F on September 1 to 53°F on September 30. From one year to the next September's mean temperature typically moves about 1.6°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 49°F and 52°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 59%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 61°F | 48°F | 52% | 33% |
| September 8 | 59°F | 46°F | 55% | 36% |
| September 15 | 57°F | 44°F | 57% | 38% |
| September 22 | 55°F | 42°F | 58% | 39% |
| September 30 | 53°F | 40°F | 59% | 39% |
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 | 61°F | 48°F | 52% | 33% | 14 h |
| September 2 | 61°F | 48°F | 52% | 33% | 14 h |
| September 3 | 61°F | 48°F | 53% | 33% | 13 h 50 min |
| September 4 | 60°F | 47°F | 53% | 34% | 13 h 50 min |
| September 5 | 60°F | 47°F | 53% | 34% | 13 h 40 min |
| September 6 | 60°F | 47°F | 54% | 35% | 13 h 40 min |
| September 7 | 60°F | 47°F | 54% | 35% | 13 h 30 min |
| September 8 | 59°F | 46°F | 55% | 36% | 13 h 30 min |
| September 9 | 59°F | 46°F | 55% | 36% | 13 h 20 min |
| September 10 | 59°F | 46°F | 55% | 36% | 13 h 20 min |
| September 11 | 59°F | 46°F | 56% | 37% | 13 h 10 min |
| September 12 | 58°F | 45°F | 56% | 37% | 13 h 10 min |
| September 13 | 58°F | 45°F | 56% | 37% | 13 h |
| September 14 | 58°F | 45°F | 56% | 37% | 13 h |
| September 15 | 57°F | 44°F | 57% | 38% | 13 h |
| September 16 | 57°F | 44°F | 57% | 38% | 12 h 50 min |
| September 17 | 57°F | 44°F | 57% | 38% | 12 h 50 min |
| September 18 | 57°F | 44°F | 57% | 38% | 12 h 40 min |
| September 19 | 56°F | 43°F | 57% | 38% | 12 h 40 min |
| September 20 | 56°F | 43°F | 58% | 38% | 12 h 30 min |
| September 21 | 56°F | 43°F | 58% | 38% | 12 h 30 min |
| September 22 | 55°F | 42°F | 58% | 39% | 12 h 20 min |
| September 23 | 55°F | 42°F | 58% | 39% | 12 h 20 min |
| September 24 | 55°F | 42°F | 58% | 39% | 12 h 10 min |
| September 25 | 54°F | 41°F | 58% | 39% | 12 h 10 min |
| September 26 | 54°F | 41°F | 58% | 39% | 12 h |
| September 27 | 54°F | 41°F | 59% | 39% | 12 h |
| September 28 | 53°F | 41°F | 59% | 39% | 11 h 50 min |
| September 29 | 53°F | 40°F | 59% | 39% | 11 h 50 min |
| September 30 | 53°F | 40°F | 59% | 39% | 11 h 40 min |
- Normal high
- 57°FSeptember average
- Normal low
- 44°FSeptember average
- Precipitation
- 7.55 inmonth total
- Days with precipitation
- 170.01 inch or more
- Nights at 32°F or colder
- 1
- Daylight
- 14 h to 11 h 40 minSeptember 1 to September 30
- Sunshine
- 59%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00025501; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Kodiak in September?
On a given September day the chance of 0.01 inch or more is 56% on average, highest around September 30 (59%). In all, 7.55 in falls on 17 days of a normal September, 2 of them with an inch or more.
In a normal September in Kodiak, 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025501.
How humid and windy is Kodiak in September?
At 3 p.m. the normal temperature is 51°F with 67% relative humidity and a dew point of 40°F; at 6 a.m. it is 44°F with 82% humidity. The wind averages 10.0 mph, most often from the north in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 44°F | 38°F | 82% | 9.1 mph | 32% |
| 9 a.m. | 46°F | 40°F | 79% | 9.1 mph | 20% |
| noon | 50°F | 40°F | 69% | 11.0 mph | 23% |
| 3 p.m. | 51°F | 40°F | 67% | 11.8 mph | 17% |
| 6 p.m. | 49°F | 40°F | 72% | 10.3 mph | 20% |
| 9 p.m. | 46°F | 40°F | 79% | 9.6 mph | 24% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00025501. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Kodiak?
The warmest September temperature on Kodiak's official record (since 1913) is 80°F, on September 12, 1929; the coldest is 26°F, on September 30, 1968. The wettest September brought 19.44 in (1995).
The September mean against the 1991-2020 normal of 50.6°F: 2021 49.6°F (−1.0), 2022 51.6°F (+1.0), 2023 48.7°F (−1.9), 2024 49.7°F (−0.9), 2025 51.1°F (+0.5), 2026 52.3°F (+1.7). 3 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 49.6°F | −1.0°F | 8.81 in |
| 2022 | 51.6°F | +1.0°F | 3.91 in |
| 2023 | 48.7°F | −1.9°F | 3.09 in |
| 2024 | 49.7°F | −0.9°F | 6.31 in |
| 2025 | 51.1°F | +0.5°F | 4.28 in |
| 2026 | 52.3°F | +1.7°F | 4.29 in |
Source: records: ACIS, NWS threaded record ADQthr; recent months: ACIS, station USW00025501. Records and recent months use complete months only.
How does September in Kodiak compare across Alaska?
Across the 85 places PlainClimate covers in Alaska, September normal highs run from 37°F in Utqiaġvik to 60°F in Klawock; Kodiak's is 57°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.