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Climate chart Siena

Jan.

max 50°F min 39°F

9

Feb.

max 54°F min 37°F

4

Mar.

max 57°F min 36°F

3

Apr.

max 63°F min 43°F

10

May.

max 81°F min 52°F

11

Jun.

max 95°F min 61°F

1

Jul.

max 102°F min 64°F

1

Aug.

max 95°F min 64°F

14

Sep.

max 79°F min 57°F

16

Oct.

max 75°F min 55°F

4

Nov.

max 59°F min 46°F

10

Dec.

max 48°F min 39°F

20

Weekly overview Siena

Weather Siena 14 days

Thursday 16-10-2025 Sunny/Clear 46°F / 70°F

Friday 17-10-2025 Sunny/Clear 45°F / 70°F

Saturday 18-10-2025 Sunny/Clear 46°F / 70°F

Sunday 19-10-2025 Sunny/Clear 45°F / 68°F

Monday 20-10-2025 Sunny/Clear 43°F / 66°F

Tuesday 21-10-2025 Patchy rain possible 48°F / 63°F

Wednesday 22-10-2025 Patchy rain possible 57°F / 70°F

Thursday 23-10-2025 Cloudy 57°F / 72°F

Friday 24-10-2025 Partly cloudy 59°F / 75°F

Saturday 25-10-2025 Sunny/Clear 54°F / 73°F

Sunday 26-10-2025 Sunny/Clear 52°F / 75°F

Monday 27-10-2025 Patchy rain possible 55°F / 72°F

Tuesday 28-10-2025 Patchy rain possible 57°F / 66°F

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