Weather in St. Helens for September 2024
Until now, September 2024 in St. Helens is cooler than usual, with temperatures averaging 17.4 °C, this is -2.7 °C below the typical seasonal average.
Expect cooler weather in the next days in St. Helens with the forecast suggesting a temperature of 17.7 °C, lower than the historical average.
In general, the average temperature in St. Helens at the beginning of September is 22 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.9 °C by the end of September.
Expect significant rainfall in St. Helens during September, with an average of 18 rainy days.
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St. Helens in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 19° | ||||||
2 21° | 3 20° | 4 21° | 5 22° | 6 26° | 7 25° | 8 24° |
9 21° | 10 20° | 11 16° | 12 15° | 13 16° | 14 18° | 15 18° |
16 17° | 17 20° | 18 21° | 19 22° | 20 22° | 21 23° | 22 18° |
23 18° | 24 15° | 25 12° | 26 17° | 27 13° | 28 15° | 29 15° |
30 17° |
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Temperatures trend during September in St. Helens
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Light drizzle | 19° /13° | 3.3 mm | 5 | |
2 Sept. | Patchy rain possible | 21° /13° | 3.7 mm | 5 | |
3 Sept. | Overcast | 20° /13° | 0.1 mm | 5 | |
4 Sept. | Sunny | 21° /12° | 0.2 mm | 6 | |
5 Sept. | Sunny | 22° /13° | 0.4 mm | 6 | |
6 Sept. | Overcast | 26° /15° | 0 mm | 7 | |
7 Sept. | Patchy rain possible | 25° /17° | 1.2 mm | 6 | |
8 Sept. | Patchy rain possible | 24° /16° | 3 mm | 6 | |
9 Sept. | Patchy rain possible | 21° /14° | 1.4 mm | 5 | |
10 Sept. | Light rain shower | 20° /13° | 4.2 mm | 5 | |
11 Sept. | Patchy rain possible | 16° /11° | 5.4 mm | 4 | |
12 Sept. | Cloudy | 15° /10° | 1.4 mm | 4 | |
13 Sept. | Overcast | 16° /8° | 0 mm | 4 | |
14 Sept. | Cloudy | 18° /11° | 0 mm | 4 | |
15 Sept. | Mist | 18° /12° | 0.6 mm | 5 | |
16 Sept. | Overcast | 17° /11° | 0.3 mm | 5 | |
17 Sept. | Sunny | 20° /10° | 0 mm | 4 | |
18 Sept. | Sunny | 21° /10° | 0 mm | 4 | |
19 Sept. | Sunny | 22° /11° | 0 mm | 3 | |
20 Sept. | Patchy rain possible | 22° /13° | 0.8 mm | 3 | |
21 Sept. | Sunny | 23° /14° | 0 mm | 3 | |
22 Sept. | Patchy rain possible | 18° /13° | 0.6 mm | 3 | |
23 Sept. | Patchy rain possible | 18° /12° | 0.2 mm | 3 | |
24 Sept. | Moderate rain | 15° /13° | 10.2 mm | 3 | |
25 Sept. | Patchy rain possible | 12° /11° | 0.5 mm | 3 | |
26 Sept. | Patchy rain possible | 17° /10° | 3.2 mm | 3 | |
27 Sept. | Patchy rain possible | 13° /10° | 2.9 mm | 3 | |
28 Sept. | Patchy rain possible | 15° /9° | 0.2 mm | 3 | |
29 Sept. | Moderate rain | 15° /10° | 5 mm | 3 | |
30 Sept. | Patchy rain possible | 17° /9° | 0.3 mm | 3 | |
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