The year at a glance
Averages from 30 years of climate history, 1991-2020
| Iona | Metric | Sanibel |
|---|---|---|
| 231 days | Sunny daysclear or partly cloudy skies | 237 days |
| 41 in | Precipitationper year | 36 in |
| 136 days | Wet daysrain or snow per year | 122 days |
| 0 in | Snowfallper year | 0 in |
| 120 days | Hot daysabove 90 °F | 120 days |
| 0 days | Freezing nightsat or below 32 °F | 0 days |
| 76% | Humidityaverage relative | 76% |
| 75 °F | Average temperatureyear round | 75 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Iona high | 75 | 78 | 81 | 85 | 89 | 91 | 91 | 92 | 90 | 87 | 81 | 77 |
| Sanibel high | 75 | 78 | 81 | 85 | 89 | 91 | 92 | 92 | 90 | 87 | 81 | 77 |
| Iona low | 54 | 56 | 59 | 64 | 69 | 73 | 75 | 75 | 74 | 69 | 62 | 57 |
| Sanibel low | 54 | 57 | 60 | 64 | 69 | 74 | 75 | 75 | 74 | 69 | 62 | 57 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Iona | 1.8 | 1.4 | 1.7 | 2.0 | 2.9 | 6.9 | 6.5 | 6.5 | 6.1 | 2.9 | 1.3 | 1.3 |
| Sanibel | 1.9 | 1.4 | 1.5 | 1.7 | 2.4 | 5.6 | 4.9 | 5.2 | 5.6 | 2.8 | 1.3 | 1.4 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Iona | 21 | 21 | 23 | 23 | 24 | 15 | 13 | 13 | 14 | 20 | 22 | 22 |
| Sanibel | 21 | 21 | 24 | 24 | 24 | 16 | 14 | 14 | 14 | 21 | 23 | 22 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Iona vs another city
- Iona vs Cypress Lake, FL
- Iona vs McGregor, FL
- Iona vs Whiskey Creek, FL
- Iona vs Villas, FL
- Iona vs Fort Myers Beach, FL
- Iona vs Cape Coral, FL
- Iona vs New York, NY
- Iona vs Los Angeles, CA
- Iona vs Chicago, IL
- Iona vs Houston, TX
- Iona vs Phoenix, AZ
- Iona vs Philadelphia, PA
Sanibel vs another city
- Sanibel vs Fort Myers Beach, FL
- Sanibel vs Cypress Lake, FL
- Sanibel vs McGregor, FL
- Sanibel vs Cape Coral, FL
- Sanibel vs Whiskey Creek, FL
- Sanibel vs New York, NY
- Sanibel vs Los Angeles, CA
- Sanibel vs Chicago, IL
- Sanibel vs Houston, TX
- Sanibel vs Phoenix, AZ
- Sanibel vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).